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https://thermofisher.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
75
GRADE
C
FIX
4
REVIEW
4
PASS
7
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
31
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
85
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
85
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

5.85 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

15.11 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

1.44 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.107

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

6.70 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

15.25 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
17
7 PASS 4 REVIEW 4 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (2.1 MiB of 2.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
7365ms total JS execution
FIX
7365ms total JS execution
Warning::
https://www.thermofisher.com/2BV563CzQeVx21jTBA/hw...: 1727ms CPU time
Warning::
Unattributable: 1495ms CPU time
Warning::
https://www.thermofisher.com/us/en/home.html: 1400ms CPU time
Warning::
https://assets.adobedtm.com/7e08552ade3f/1a8047d2b...: 772ms CPU time
Warning::
https://www.thermofisher.com/store/global-header-f...: 417ms CPU time
Warning::
Third-party scripts: 7365ms (100% of total)

Main Thread Breakdown

Script Evaluation 53% Other 18% Style & Layout 14% Script Parsing & Compilation 5% Parse HTML & CSS 4% Garbage Collection 3%
ScriptTotalScriptingParse/CompileParty
https://www.thermofisher.com/2BV563CzQeVx21jTBA/hwiELf9Yb1w1/fARXBBIUJAo/SxI/-W1pkOVUPAg?v=f2680991-8b36-71cb-805e-4c76613017341727ms1603ms59ms3rd
Unattributable1495ms206ms0ms3rd
https://www.thermofisher.com/us/en/home.html1400ms578ms73ms3rd
https://assets.adobedtm.com/7e08552ade3f/1a8047d2b483/launch-f46125d37e44.min.js772ms379ms49ms3rd
https://www.thermofisher.com/store/global-header-footer-static/tf/js/utilities.min.2fcc55055ffa73.js417ms399ms8ms3rd
https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/p-3542f377.entry.js359ms19ms1ms3rd
https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/p-Bq5HM40R.js300ms217ms0ms3rd
https://www.thermofisher.com/akam/13/7b39edf2169ms161ms5ms3rd
https://cdn.userway.org/widgetapp/2022-01-10/widget_app_1641814805298.js156ms124ms24ms3rd
https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-jquery.min.8d1dd693277adc2d7ac11a3e46026056.js148ms113ms21ms3rd

Showing top 10 of 15 scripts

D
Page Weight Inventory
Action
159 resources · 2.1 MB · 200 KB savings available
FIX
159 resources · 2.1 MB · 200 KB savings available
Warning::
Page weight 1.1 MB over 1MB target
Got: 2.1 MB Expected: ≤ 1 MB
Info::
~200 KB of savings available
Warning::
158 third-party resources (100% of weight)
Info::
1 resources over 200KB
159 resources · 2.1 MiB · 158 third-party 1.1 MiB over 1MB target
JavaScript 36% · 753.7 KiB
Image 27% · 567.4 KiB
CSS 17% · 364.3 KiB
Font 13% · 265.0 KiB
Other 4% · 77.9 KiB
Document 3% · 71.9 KiB

~200.0 KiB of savings available

Remove unused JavaScript: 200.0 KiB
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

C
Page Weight Budget
Action
2.1 MB transferred, 159 requests
REVIEW
2.1 MB transferred, 159 requests
Info::
Page weighs 5.5 MB (2.1 MB transferred)
Warning::
JavaScript is 654 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 654 KB
Info::
CSS is 364 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 364 KB
Info::
Fonts are 265 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 265 KB
Warning::
159 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.43 g CO2 per page load
2.1 MB / 2.4 MB budget
2.1 MB transferred
159 requests
0.43 g CO2 per page load
JavaScript 654.4 KiB 31%
Images 565.2 KiB 27%
CSS 364.3 KiB 17%
Fonts 265.0 KiB 13%
Other 120.4 KiB 6%
HTML 71.3 KiB 3%
Other 56.3 KiB 3%
Other 3.2 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Approaching limit

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

Source: web.dev

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

C
Image Optimization
Action
72 images, 0 KB saveable
REVIEW
72 images, 0 KB saveable
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.thermofisher.com/blog/wp-content/uploa... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/BID/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.thermofisher.com/blog/wp-content/uploa... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LED/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/BID/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.thermofisher.com/store/global-header-f... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/CCG/The... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/BID/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://consent-insights-3c23a978f31a.herokuapp.co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://consent-insights-3c23a978f31a.herokuapp.co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/BID/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/BID/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.thermofisher.com/blog/wp-content/uploa... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/LSG/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.thermofisher.com/TFS-Assets/BID/pro... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
72 images 565 KB
0 oversized -0 KB
17 legacy format
40 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

C
JS Bundles
Action
40 scripts, 200 KB unused
REVIEW
40 scripts, 200 KB unused
Warning::
https://cdn.userway.org/widgetapp/2022-01-10/remed...: 36 KB unused (94%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.userway.org/widgetapp/2022-01-10/widge...: 33 KB unused (62%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.thermofisher.com/2BV563CzQeVx21jTBA/hw...: 30 KB unused (20%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn1.adoberesources.net/alloy/2.23.0/alloy...: 29 KB unused (86%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://consent.trustarc.com/asset/thermofisher-cu...: 26 KB unused (71%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 200 KB
200 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdn.userway.org/widgetapp/2022-01-10/remediation/remediation_1641814805298.js39 KB36 KB (94%)✓3rd
https://cdn.userway.org/widgetapp/2022-01-10/widget_app_1641814805298.js53 KB33 KB (62%)✓3rd
https://www.thermofisher.com/2BV563CzQeVx21jTBA/hwiELf9Yb1w1/fARXBBIUJAo/SxI/-W1pkOVUPAg?v=f2680991-8b36-71cb-805e-4c7661301734149 KB30 KB (20%)✓3rd
https://cdn1.adoberesources.net/alloy/2.23.0/alloy.min.js35 KB29 KB (86%)✓3rd
https://consent.trustarc.com/asset/thermofisher-custom-js.js/v/v1.7-172936 KB26 KB (71%)✓3rd
https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-jquery.min.8d1dd693277adc2d7ac11a3e46026056.js45 KB25 KB (55%)✓3rd
https://assets.adobedtm.com/7e08552ade3f/1a8047d2b483/launch-f46125d37e44.min.js73 KB21 KB (29%)✓3rd
https://consent.truste.com/notice?c=teconsent&pcookie=true&js=nj&gtm=true&noticeType=bb&text=true&domain=thermofisher.com&country=us&language=en&privacypolicylink=https://www.thermofisher.com/us/en/home/global/privacy-policy.html&cookieLink=https://www.thermofisher.com/us/en/home/global/how-cookies-are-used.html14 KB—✓3rd
blob:https://www.thermofisher.com/624fcf4c-526d-4a0b-9210-0ae4d8d60e7a-0 KB—✓3rd
https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-site.min.0da5380b21c31406f3efe7abb1658c8d.js4 KB—✓3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
9 fonts (265 KB)
PASS
9 fonts (265 KB)
Info::
9 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

9

265 KB total

Render-blocking

0

of 9

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 5.8 s LCP 15.1 shttps://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS.woff2HelveticaNeueforTFS.woff2 https://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS.woff2 — 39.1 KiB — 238 ms — font-display: swaphttps://www.thermofisher.com/designsystem-cdn/fonts/HelveticaNeueLTW01-75Bold.woff2HelveticaNeueLTW01-75Bo... https://www.thermofisher.com/designsystem-cdn/fonts/HelveticaNeueLTW01-75Bold.woff2 — 17.6 KiB — 13 ms — font-display: swaphttps://www.thermofisher.com/designsystem-cdn/fonts/HelveticaNeueLTW01-55Roman.woff2HelveticaNeueLTW01-55Ro... https://www.thermofisher.com/designsystem-cdn/fonts/HelveticaNeueLTW01-55Roman.woff2 — 17.5 KiB — 25 ms — font-display: swaphttps://www.thermofisher.com/designsystem-cdn/fonts/HelveticaNeueLTW01-65Medium.woff2HelveticaNeueLTW01-65Me... https://www.thermofisher.com/designsystem-cdn/fonts/HelveticaNeueLTW01-65Medium.woff2 — 17.6 KiB — 20 ms — font-display: swaphttps://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Bd.woff2HelveticaNeueforTFS-Bd.... https://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Bd.woff2 — 39.0 KiB — 76 ms — font-display: swaphttps://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Md.woff2HelveticaNeueforTFS-Md.... https://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Md.woff2 — 39.8 KiB — 141 ms — font-display: swaphttps://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Lt.woff2HelveticaNeueforTFS-Lt.... https://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Lt.woff2 — 38.4 KiB — 150 ms — font-display: swaphttps://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Th.woff2HelveticaNeueforTFS-Th.... https://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Th.woff2 — 38.6 KiB — 159 ms — font-display: swaphttps://www.thermofisher.com/designsystem-cdn/fonts/HelveticaNeueLTW01-45Light.woff2HelveticaNeueLTW01-45Li... https://www.thermofisher.com/designsystem-cdn/fonts/HelveticaNeueLTW01-45Light.woff2 — 17.3 KiB — 23 ms — font-display: swap
HelveticaNeueforTFS.woff2 woff2 swap
Size 39 KB
Load time 238 ms
Start 327 ms
Risk FOUT — text flashes from fallback to web font
HelveticaNeueLTW01-75Bo... woff2 swap
Size 18 KB
Load time 13 ms
Start 401 ms
Risk FOUT — text flashes from fallback to web font
HelveticaNeueLTW01-55Ro... woff2 swap
Size 17 KB
Load time 25 ms
Start 401 ms
Risk FOUT — text flashes from fallback to web font
HelveticaNeueLTW01-65Me... woff2 swap
Size 18 KB
Load time 20 ms
Start 402 ms
Risk FOUT — text flashes from fallback to web font
HelveticaNeueforTFS-Bd.... woff2 swap
Size 39 KB
Load time 76 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
HelveticaNeueforTFS-Md.... woff2 swap
Size 40 KB
Load time 141 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
HelveticaNeueforTFS-Lt.... woff2 swap
Size 38 KB
Load time 150 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
HelveticaNeueforTFS-Th.... woff2 swap
Size 39 KB
Load time 159 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
HelveticaNeueLTW01-45Li... woff2 swap
Size 17 KB
Load time 23 ms
Start 1.7 s
Risk FOUT — text flashes from fallback to web font
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
7 hints, 0 missing preconnects
PASS
7 hints, 0 missing preconnects
Info::
Page uses 7 resource hint(s)

Current Resource Hints

preconnect
3
preload
—
dns-prefetch
4
prefetch
—

7 resource hints configured

A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
Network Waterfall
159 requests over 6885ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 5.8 s LCP 15.1 shttps://thermofisher.com// https://thermofisher.com/ — 301 — 133 B — 90 ms — http/1.0https://www.thermofisher.com/www.thermofisher.com/ https://www.thermofisher.com/ — 301 — 1.8 KiB — 41 ms — h2https://www.thermofisher.com/us/en/home.htmlwww.thermofisher.com/us/en/home.htm... https://www.thermofisher.com/us/en/home.html — 200 — 71.3 KiB — 47 ms — h2https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-base.min.4e86bddcd70a52efb4f582f26a4738f9.csswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-base.min.4e86bddcd70a52efb4f582f26a4738f9.css — 200 — 6.7 KiB — 18 ms — h2https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-dependencies.min.d41d8cd98f00b204e9800998ecf8427e.csswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-dependencies.min.d41d8cd98f00b204e9800998ecf8427e.css — 200 — 386 B — 29 ms — h2https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-site.min.179751e29605006ed2d18570bf17502c.csswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-site.min.179751e29605006ed2d18570bf17502c.css — 200 — 29.3 KiB — 31 ms — h2https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-jquery.min.8d1dd693277adc2d7ac11a3e46026056.jswww.thermofisher.com/etc/designs/ko... https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-jquery.min.8d1dd693277adc2d7ac11a3e46026056.js — 200 — 44.8 KiB — 43 ms — h2https://tfux.thermofisher.com/cdn/fonts/v2/kmd-fonts.csstfux.thermofisher.com/cdn/fonts/v2/... https://tfux.thermofisher.com/cdn/fonts/v2/kmd-fonts.css — 200 — 951 B — 46 ms — h2https://www.thermofisher.com/designsystem-cdn/design-tokens/variables.csswww.thermofisher.com/designsystem-c... https://www.thermofisher.com/designsystem-cdn/design-tokens/variables.css — 200 — 2.6 KiB — 27 ms — h2https://www.thermofisher.com/dm-offers/dm-offer-style.csswww.thermofisher.com/dm-offers/dm-o... https://www.thermofisher.com/dm-offers/dm-offer-style.css — 200 — 11.4 KiB — 33 ms — h2https://www.thermofisher.com/store/global-header-footer-static/tf/js/lt.2fcc55055ffa73.jswww.thermofisher.com/store/global-h... https://www.thermofisher.com/store/global-header-footer-static/tf/js/lt.2fcc55055ffa73.js — 200 — 9.1 KiB — 35 ms — h2https://www.thermofisher.com/store/global-header-footer-static/global/svg/external-link-bold.svgwww.thermofisher.com/store/global-h... https://www.thermofisher.com/store/global-header-footer-static/global/svg/external-link-bold.svg — 200 — 743 B — 39 ms — h2https://www.thermofisher.com/store/minicartv3/minicart.jswww.thermofisher.com/store/minicart... https://www.thermofisher.com/store/minicartv3/minicart.js — 200 — 11.8 KiB — 37 ms — h2https://www.thermofisher.com/designsystem-cdn/text-comp-icons/style.csswww.thermofisher.com/designsystem-c... https://www.thermofisher.com/designsystem-cdn/text-comp-icons/style.css — 200 — 840 B — 20 ms — h2https://www.thermofisher.com/designsystem-cdn/css/komodo-icons.csswww.thermofisher.com/designsystem-c... https://www.thermofisher.com/designsystem-cdn/css/komodo-icons.css — 200 — 8.7 KiB — 44 ms — h2https://www.thermofisher.com/store/v3/web-components/cart-nudge.jswww.thermofisher.com/store/v3/web-c... https://www.thermofisher.com/store/v3/web-components/cart-nudge.js — 200 — 1.9 KiB — 12 ms — h2https://identity.thermofisher.com/account-center/scripts/identityGlobal.min.jsidentity.thermofisher.com/account-c... https://identity.thermofisher.com/account-center/scripts/identityGlobal.min.js — 200 — 4.2 KiB — 16 ms — h2https://www.thermofisher.com/etc.clientlibs/corpcommons/clientlibs/polyfill.min.ced9a8b849fe1541e09ff528e4c65acf.jswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/corpcommons/clientlibs/polyfill.min.ced9a8b849fe1541e09ff528e4c65acf.js — 200 — 2.2 KiB — 15 ms — h2https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-bootstrap.min.194d136e59bbf72484d27bf189ac0794.jswww.thermofisher.com/etc/designs/ko... https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-bootstrap.min.194d136e59bbf72484d27bf189ac0794.js — 200 — 16.4 KiB — 14 ms — h2https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-addons.min.3b6dd4e5f4734fac5549772c44ff53fc.csswww.thermofisher.com/etc/designs/ko... https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-addons.min.3b6dd4e5f4734fac5549772c44ff53fc.css — 200 — 3.9 KiB — 10 ms — h2https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-base.min.c5016c058b5b5fee04bec5b9f984bb9b.jswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-base.min.c5016c058b5b5fee04bec5b9f984bb9b.js — 200 — 9.7 KiB — 24 ms — h2https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-dependencies.min.d41d8cd98f00b204e9800998ecf8427e.jswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-dependencies.min.d41d8cd98f00b204e9800998ecf8427e.js — 200 — 326 B — 24 ms — h2https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-site.min.0da5380b21c31406f3efe7abb1658c8d.jswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-site.min.0da5380b21c31406f3efe7abb1658c8d.js — 200 — 4.0 KiB — 37 ms — h2https://www.thermofisher.com/akam/13/7b39edf2www.thermofisher.com/akam/13/7b39ed... https://www.thermofisher.com/akam/13/7b39edf2 — 200 — 9.4 KiB — 33 ms — h2https://cdn1.adoberesources.net/alloy/2.23.0/alloy.min.jscdn1.adoberesources.net/alloy/2.23.... https://cdn1.adoberesources.net/alloy/2.23.0/alloy.min.js — 200 — 34.5 KiB — 28 ms — h2https://www.thermofisher.com/store/global-header-footer-static/tf/js/utilities.min.2fcc55055ffa73.jswww.thermofisher.com/store/global-h... https://www.thermofisher.com/store/global-header-footer-static/tf/js/utilities.min.2fcc55055ffa73.js — 200 — 5.9 KiB — 38 ms — h2https://www.thermofisher.com/search/static/resources/js/signals.min.jswww.thermofisher.com/search/static/... https://www.thermofisher.com/search/static/resources/js/signals.min.js — 200 — 3.2 KiB — 39 ms — h2https://www.thermofisher.com/shared-static/scripts/global-functions-fallback.jswww.thermofisher.com/shared-static/... https://www.thermofisher.com/shared-static/scripts/global-functions-fallback.js — 200 — 1.6 KiB — 42 ms — h2https://www.thermofisher.com/shared-static/scripts/global-variables-fallback.jswww.thermofisher.com/shared-static/... https://www.thermofisher.com/shared-static/scripts/global-variables-fallback.js — 200 — 8.0 KiB — 43 ms — h2https://www.thermofisher.com/store/global-header-footer-static/global/images/flags/us.gifwww.thermofisher.com/store/global-h... https://www.thermofisher.com/store/global-header-footer-static/global/images/flags/us.gif — 200 — 382 B — 54 ms — h2
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 5.8 s LCP 15.1 shttps://thermofisher.com// https://thermofisher.com/ — 301 — 133 B — 90 ms — http/1.0https://www.thermofisher.com/www.thermofisher.com/ https://www.thermofisher.com/ — 301 — 1.8 KiB — 41 ms — h2https://www.thermofisher.com/us/en/home.htmlwww.thermofisher.com/us/en/home.htm... https://www.thermofisher.com/us/en/home.html — 200 — 71.3 KiB — 47 ms — h2https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-base.min.4e86bddcd70a52efb4f582f26a4738f9.csswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-base.min.4e86bddcd70a52efb4f582f26a4738f9.css — 200 — 6.7 KiB — 18 ms — h2https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-dependencies.min.d41d8cd98f00b204e9800998ecf8427e.csswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-dependencies.min.d41d8cd98f00b204e9800998ecf8427e.css — 200 — 386 B — 29 ms — h2https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-site.min.179751e29605006ed2d18570bf17502c.csswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-site.min.179751e29605006ed2d18570bf17502c.css — 200 — 29.3 KiB — 31 ms — h2https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-jquery.min.8d1dd693277adc2d7ac11a3e46026056.jswww.thermofisher.com/etc/designs/ko... https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-jquery.min.8d1dd693277adc2d7ac11a3e46026056.js — 200 — 44.8 KiB — 43 ms — h2https://tfux.thermofisher.com/cdn/fonts/v2/kmd-fonts.csstfux.thermofisher.com/cdn/fonts/v2/... https://tfux.thermofisher.com/cdn/fonts/v2/kmd-fonts.css — 200 — 951 B — 46 ms — h2https://www.thermofisher.com/designsystem-cdn/design-tokens/variables.csswww.thermofisher.com/designsystem-c... https://www.thermofisher.com/designsystem-cdn/design-tokens/variables.css — 200 — 2.6 KiB — 27 ms — h2https://www.thermofisher.com/dm-offers/dm-offer-style.csswww.thermofisher.com/dm-offers/dm-o... https://www.thermofisher.com/dm-offers/dm-offer-style.css — 200 — 11.4 KiB — 33 ms — h2https://www.thermofisher.com/store/global-header-footer-static/tf/js/lt.2fcc55055ffa73.jswww.thermofisher.com/store/global-h... https://www.thermofisher.com/store/global-header-footer-static/tf/js/lt.2fcc55055ffa73.js — 200 — 9.1 KiB — 35 ms — h2https://www.thermofisher.com/store/global-header-footer-static/global/svg/external-link-bold.svgwww.thermofisher.com/store/global-h... https://www.thermofisher.com/store/global-header-footer-static/global/svg/external-link-bold.svg — 200 — 743 B — 39 ms — h2https://www.thermofisher.com/store/minicartv3/minicart.jswww.thermofisher.com/store/minicart... https://www.thermofisher.com/store/minicartv3/minicart.js — 200 — 11.8 KiB — 37 ms — h2https://www.thermofisher.com/designsystem-cdn/text-comp-icons/style.csswww.thermofisher.com/designsystem-c... https://www.thermofisher.com/designsystem-cdn/text-comp-icons/style.css — 200 — 840 B — 20 ms — h2https://www.thermofisher.com/designsystem-cdn/css/komodo-icons.csswww.thermofisher.com/designsystem-c... https://www.thermofisher.com/designsystem-cdn/css/komodo-icons.css — 200 — 8.7 KiB — 44 ms — h2https://www.thermofisher.com/store/v3/web-components/cart-nudge.jswww.thermofisher.com/store/v3/web-c... https://www.thermofisher.com/store/v3/web-components/cart-nudge.js — 200 — 1.9 KiB — 12 ms — h2https://identity.thermofisher.com/account-center/scripts/identityGlobal.min.jsidentity.thermofisher.com/account-c... https://identity.thermofisher.com/account-center/scripts/identityGlobal.min.js — 200 — 4.2 KiB — 16 ms — h2https://www.thermofisher.com/etc.clientlibs/corpcommons/clientlibs/polyfill.min.ced9a8b849fe1541e09ff528e4c65acf.jswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/corpcommons/clientlibs/polyfill.min.ced9a8b849fe1541e09ff528e4c65acf.js — 200 — 2.2 KiB — 15 ms — h2https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-bootstrap.min.194d136e59bbf72484d27bf189ac0794.jswww.thermofisher.com/etc/designs/ko... https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-bootstrap.min.194d136e59bbf72484d27bf189ac0794.js — 200 — 16.4 KiB — 14 ms — h2https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-addons.min.3b6dd4e5f4734fac5549772c44ff53fc.csswww.thermofisher.com/etc/designs/ko... https://www.thermofisher.com/etc/designs/komodo/clientlibs/base-addons.min.3b6dd4e5f4734fac5549772c44ff53fc.css — 200 — 3.9 KiB — 10 ms — h2https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-base.min.c5016c058b5b5fee04bec5b9f984bb9b.jswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-base.min.c5016c058b5b5fee04bec5b9f984bb9b.js — 200 — 9.7 KiB — 24 ms — h2https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-dependencies.min.d41d8cd98f00b204e9800998ecf8427e.jswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-dependencies.min.d41d8cd98f00b204e9800998ecf8427e.js — 200 — 326 B — 24 ms — h2https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-site.min.0da5380b21c31406f3efe7abb1658c8d.jswww.thermofisher.com/etc.clientlibs... https://www.thermofisher.com/etc.clientlibs/tfsite/clientlibs/clientlib-site.min.0da5380b21c31406f3efe7abb1658c8d.js — 200 — 4.0 KiB — 37 ms — h2https://www.thermofisher.com/akam/13/7b39edf2www.thermofisher.com/akam/13/7b39ed... https://www.thermofisher.com/akam/13/7b39edf2 — 200 — 9.4 KiB — 33 ms — h2https://cdn1.adoberesources.net/alloy/2.23.0/alloy.min.jscdn1.adoberesources.net/alloy/2.23.... https://cdn1.adoberesources.net/alloy/2.23.0/alloy.min.js — 200 — 34.5 KiB — 28 ms — h2https://www.thermofisher.com/store/global-header-footer-static/tf/js/utilities.min.2fcc55055ffa73.jswww.thermofisher.com/store/global-h... https://www.thermofisher.com/store/global-header-footer-static/tf/js/utilities.min.2fcc55055ffa73.js — 200 — 5.9 KiB — 38 ms — h2https://www.thermofisher.com/search/static/resources/js/signals.min.jswww.thermofisher.com/search/static/... https://www.thermofisher.com/search/static/resources/js/signals.min.js — 200 — 3.2 KiB — 39 ms — h2https://www.thermofisher.com/shared-static/scripts/global-functions-fallback.jswww.thermofisher.com/shared-static/... https://www.thermofisher.com/shared-static/scripts/global-functions-fallback.js — 200 — 1.6 KiB — 42 ms — 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https://dm-images.thermofisher.com/is/image/thermofisherscientific/WB-14363908-HR-V2-8192x1888%3Athermofisher-smart-dm-web-HR?ts=1776249501794&dpr=on,1 — 200 — 196.1 KiB — 95 ms — h2https://dm-images.thermofisher.com/is/image/thermofisherscientific/WB-14363908-POD-01-600x760%3Athermofisher-smart-dm-web-HRPOD?ts=1776249501838&dpr=on,1dm-images.thermofisher.com/is/image... https://dm-images.thermofisher.com/is/image/thermofisherscientific/WB-14363908-POD-01-600x760%3Athermofisher-smart-dm-web-HRPOD?ts=1776249501838&dpr=on,1 — 200 — 5.8 KiB — 81 ms — h2https://dm-images.thermofisher.com/is/image/thermofisherscientific/WB-14363908-POD-02-600x760%3Athermofisher-smart-dm-web-HRPOD?ts=1776249501871&dpr=on,1dm-images.thermofisher.com/is/image... https://dm-images.thermofisher.com/is/image/thermofisherscientific/WB-14363908-POD-02-600x760%3Athermofisher-smart-dm-web-HRPOD?ts=1776249501871&dpr=on,1 — 200 — 3.8 KiB — 82 ms — h2https://dm-images.thermofisher.com/is/image/thermofisherscientific/WB-14363908-POD-03-600x760%3Athermofisher-smart-dm-web-HRPOD?ts=1776249501894&dpr=on,1dm-images.thermofisher.com/is/image... https://dm-images.thermofisher.com/is/image/thermofisherscientific/WB-14363908-POD-03-600x760%3Athermofisher-smart-dm-web-HRPOD?ts=1776249501894&dpr=on,1 — 200 — 2.8 KiB — 86 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/A15300_TaqPath-1-Step_RT-qPCR-Master-Mix.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/A15300_TaqPath-1-Step_RT-qPCR-Master-Mix.jpg-150.jpg — 200 — 2.8 KiB — 94 ms — h2https://assets.thermofisher.com/TFS-Assets/BID/product-images/12361250_650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/BID/product-images/12361250_650x600.jpg-150.jpg — 200 — 3.0 KiB — 149 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/4444434-650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/4444434-650x600.jpg-150.jpg — 200 — 2.9 KiB — 73 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/25-12870831-A4817903-STD-00.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/25-12870831-A4817903-STD-00.jpg-150.jpg — 200 — 1.7 KiB — 74 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/18091200-650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/18091200-650x600.jpg-150.jpg — 200 — 4.1 KiB — 76 ms — h2https://assets.thermofisher.com/TFS-Assets/LED/product-images/F76107_p.eps-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LED/product-images/F76107_p.eps-150.jpg — 200 — 3.3 KiB — 149 ms — 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h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/14190359_Gibco%20DPBS%20no%20calcium%20no%20magnesium%2010%20L.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/14190359_Gibco%20DPBS%20no%20calcium%20no%20magnesium%2010%20L.jpg-150.jpg — 200 — 2.8 KiB — 98 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/4444436-650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/4444436-650x600.jpg-150.jpg — 200 — 3.8 KiB — 100 ms — h2https://assets.thermofisher.com/TFS-Assets/CCG/Thermo-Scientific/product-images/20-1591103-14387331-STD-00.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/CCG/Thermo-Scientific/product-images/20-1591103-14387331-STD-00.jpg-150.jpg — 200 — 2.8 KiB — 102 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/A14526_10IN.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/A14526_10IN.jpg-150.jpg — 200 — 2.6 KiB — 146 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/88817-SA-Magnetic-Beads.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/88817-SA-Magnetic-Beads.jpg-150.jpg — 200 — 2.6 KiB — 102 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/A15298_TaqPath-qPCR-Master-Mix.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/A15298_TaqPath-qPCR-Master-Mix.jpg-150.jpg — 200 — 2.8 KiB — 103 ms — h2https://assets.thermofisher.com/TFS-Assets/BID/product-images/11995123_Gibco_DMEM_wf1661624_650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/BID/product-images/11995123_Gibco_DMEM_wf1661624_650x600.jpg-150.jpg — 200 — 2.2 KiB — 106 ms — h2https://assets.thermofisher.com/TFS-Assets/BID/product-images/A52045_md50_650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/BID/product-images/A52045_md50_650x600.jpg-150.jpg — 200 — 2.2 KiB — 146 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/18064071-650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/18064071-650x600.jpg-150.jpg — 200 — 3.3 KiB — 145 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/15596026_650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/15596026_650x600.jpg-150.jpg — 200 — 2.0 KiB — 145 ms — h2https://assets.thermofisher.com/TFS-Assets/CAD/product-images/anstat-430-1.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/CAD/product-images/anstat-430-1.jpg-150.jpg — 200 — 2.1 KiB — 104 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/17504044_B27-Supp_650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/17504044_B27-Supp_650x600.jpg-150.jpg — 200 — 1.6 KiB — 105 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/23-6973318-A5256701-STD-00-1280x1280.jpeg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/23-6973318-A5256701-STD-00-1280x1280.jpeg-150.jpg — 200 — 3.2 KiB — 146 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/NP0005_650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/NP0005_650x600.jpg-150.jpg — 200 — 1.1 KiB — 107 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/S33102_650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/S33102_650x600.jpg-150.jpg — 200 — 4.0 KiB — 147 ms — h2https://assets.thermofisher.com/TFS-Assets/CAD/product-images/truscan-g3-1000x1000.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/CAD/product-images/truscan-g3-1000x1000.jpg-150.jpg — 200 — 2.0 KiB — 148 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/26619-pageruler-mw-ladder.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/26619-pageruler-mw-ladder.jpg-150.jpg — 200 — 3.1 KiB — 150 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/23225-BCA-Assay-Kit.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/23225-BCA-Assay-Kit.jpg-150.jpg — 200 — 3.9 KiB — 150 ms — h2https://assets.thermofisher.com/TFS-Assets/BID/product-images/11875093_650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/BID/product-images/11875093_650x600.jpg-150.jpg — 200 — 2.0 KiB — 152 ms — h2https://assets.thermofisher.com/TFS-Assets/CAD/product-images/msa430-1.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/CAD/product-images/msa430-1.jpg-150.jpg — 200 — 3.3 KiB — 163 ms — h2https://assets.thermofisher.com/TFS-Assets/CAD/product-images/mep-300-2.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/CAD/product-images/mep-300-2.jpg-150.jpg — 200 — 1.2 KiB — 165 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/35050061-STD-00-1280x1280.jpeg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/35050061-STD-00-1280x1280.jpeg-150.jpg — 200 — 3.1 KiB — 167 ms — h2https://assets.thermofisher.com/TFS-Assets/CCG/product-images/F71071_p.eps-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/CCG/product-images/F71071_p.eps-150.jpg — 200 — 3.5 KiB — 168 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/M36008_0630.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/M36008_0630.jpg-150.jpg — 200 — 2.3 KiB — 170 ms — h2https://assets.thermofisher.com/TFS-Assets/CAD/product-images/sentinel-4000d-1.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/CAD/product-images/sentinel-4000d-1.jpg-150.jpg — 200 — 2.0 KiB — 172 ms — 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https://assets.thermofisher.com/TFS-Assets/BID/product-images/Lipofectamine_3000_L3000015_650x600.jpg-150.jpg — 200 — 3.4 KiB — 192 ms — h2https://assets.thermofisher.com/TFS-Assets/BID/product-images/11140050_MEM_NEAA_100X_100ML_650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/BID/product-images/11140050_MEM_NEAA_100X_100ML_650x600.jpg-150.jpg — 200 — 2.5 KiB — 190 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/89900-ripa-buffer.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/89900-ripa-buffer.jpg-150.jpg — 200 — 1.7 KiB — 179 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/10977023-UltraPure-DNase-RNase-650x600.jpg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/10977023-UltraPure-DNase-RNase-650x600.jpg-150.jpg — 200 — 1.9 KiB — 180 ms — h2https://assets.thermofisher.com/TFS-Assets/LSG/product-images/14190144-STD-00-1280x1280.jpeg-150.jpgassets.thermofisher.com/TFS-Assets/... https://assets.thermofisher.com/TFS-Assets/LSG/product-images/14190144-STD-00-1280x1280.jpeg-150.jpg — 200 — 2.8 KiB — 182 ms — h2https://edge.adobedc.net/ee/va6/v1/interact?configId=4e117c52-1156-4f73-a1aa-56dfae5cfc9b&requestId=f6702ab2-9776-48f6-b89c-6319442c7199edge.adobedc.net/ee/va6/v1/interact... https://edge.adobedc.net/ee/va6/v1/interact?configId=4e117c52-1156-4f73-a1aa-56dfae5cfc9b&requestId=f6702ab2-9776-48f6-b89c-6319442c7199 — 200 — 470 B — 67 ms — h2https://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Bd.woff2tfux.thermofisher.com/cdn/fonts/v2/... https://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Bd.woff2 — 200 — 39.0 KiB — 76 ms — h2https://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Md.woff2tfux.thermofisher.com/cdn/fonts/v2/... https://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Md.woff2 — 200 — 39.8 KiB — 141 ms — h2https://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Lt.woff2tfux.thermofisher.com/cdn/fonts/v2/... https://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Lt.woff2 — 200 — 38.4 KiB — 150 ms — h2https://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Th.woff2tfux.thermofisher.com/cdn/fonts/v2/... https://tfux.thermofisher.com/cdn/fonts/v2/HelveticaNeueforTFS-Th.woff2 — 200 — 38.6 KiB — 159 ms — h2https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/core.esm.jswww.thermofisher.com/designsystem-c... https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/core.esm.js — 200 — 4.5 KiB — 50 ms — h2https://www.thermofisher.com/api/store/recommendations/recommendation/target/attributeswww.thermofisher.com/api/store/reco... https://www.thermofisher.com/api/store/recommendations/recommendation/target/attributes — 200 — 1.1 KiB — 52 ms — h2https://www.thermofisher.com/api/store/recommendations/recommendation/target/attributeswww.thermofisher.com/api/store/reco... https://www.thermofisher.com/api/store/recommendations/recommendation/target/attributes — 200 — 1.1 KiB — 38 ms — h2https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/p-Bq5HM40R.jswww.thermofisher.com/designsystem-c... https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/p-Bq5HM40R.js — 200 — 12.3 KiB — 55 ms — h2https://analytics-fe.digital-cloud-us-main.medallia.com/api/web/eventsanalytics-fe.digital-cloud-us-main.... https://analytics-fe.digital-cloud-us-main.medallia.com/api/web/events — 200 — 39 B — 69 ms — h2https://consent-insights-3c23a978f31a.herokuapp.com/api/v1/impressions/capture?api_key=CI-3929813243&secret=810274278902470721624405905887912991104270295366493143855663183685375235160482241511078341257235422202822656000&country=us&language=en&visit_id=8f6b6983-0dd4-440a-9ce0-cac776b83b6d&ut=NEW&ua=Mozilla%2F5.0+%28Linux%3B+Android+11%3B+moto+g+power+%282022%29%29+AppleWebKit%2F537.36+%28KHTML%2C+like+Gecko%29+Chrome%2F146.0.0.0+Mobile+Safari%2F537.36&title=Thermo+Fisher+Scientific+-+US&url=https%3A%2F%2Fwww.thermofisher.com%2Fus%2Fen%2Fhome.htmlconsent-insights-3c23a978f31a.herok... https://consent-insights-3c23a978f31a.herokuapp.com/api/v1/impressions/capture?api_key=CI-3929813243&secret=810274278902470721624405905887912991104270295366493143855663183685375235160482241511078341257235422202822656000&country=us&language=en&visit_id=8f6b6983-0dd4-440a-9ce0-cac776b83b6d&ut=NEW&ua=Mozilla%2F5.0+%28Linux%3B+Android+11%3B+moto+g+power+%282022%29%29+AppleWebKit%2F537.36+%28KHTML%2C+like+Gecko%29+Chrome%2F146.0.0.0+Mobile+Safari%2F537.36&title=Thermo+Fisher+Scientific+-+US&url=https%3A%2F%2Fwww.thermofisher.com%2Fus%2Fen%2Fhome.html — 200 — 1.3 KiB — 22 ms — http/1.1https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/p-3542f377.entry.jswww.thermofisher.com/designsystem-c... https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/p-3542f377.entry.js — 200 — 25.0 KiB — 17 ms — h2https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/p-ImEnqWB0.jswww.thermofisher.com/designsystem-c... https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/p-ImEnqWB0.js — 200 — 579 B — 15 ms — h2https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/p-D5SdaplC.jswww.thermofisher.com/designsystem-c... https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/p-D5SdaplC.js — 200 — 2.0 KiB — 27 ms — h2https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/p-DFzFS5i9.jswww.thermofisher.com/designsystem-c... https://www.thermofisher.com/designsystem-cdn/libraries/core/komodo-core-web-components-3-29-0-beta/dist/core/p-DFzFS5i9.js — 200 — 612 B — 28 ms — h2blob:https://www.thermofisher.com/03af5c2b-6788-425b-bd84-ac1647891137www.thermofisher.com/03af5c2b-6788-... blob:https://www.thermofisher.com/03af5c2b-6788-425b-bd84-ac1647891137 — -1 — 0 B — 0 ms — https://www.thermofisher.com/designsystem-cdn/fonts/HelveticaNeueLTW01-45Light.woff2www.thermofisher.com/designsystem-c... https://www.thermofisher.com/designsystem-cdn/fonts/HelveticaNeueLTW01-45Light.woff2 — 200 — 17.3 KiB — 23 ms — h2https://cdn.userway.org/widgetapp/2022-01-10/remediation/remediation_1641814805298.jscdn.userway.org/widgetapp/2022-01-1... https://cdn.userway.org/widgetapp/2022-01-10/remediation/remediation_1641814805298.js — 200 — 39.3 KiB — 5 ms — h2https://cdn.userway.org/widgetapp/images/body_wh.svgcdn.userway.org/widgetapp/images/bo... https://cdn.userway.org/widgetapp/images/body_wh.svg — 200 — 2.7 KiB — 18 ms — h2https://cdn.userway.org/widgetapp/images/spin_wh.svgcdn.userway.org/widgetapp/images/sp... https://cdn.userway.org/widgetapp/images/spin_wh.svg — 200 — 1.2 KiB — 19 ms — h2https://www.thermofisher.com/2BV563CzQeVx21jTBA/hwiELf9Yb1w1/fARXBBIUJAo/SxI/-W1pkOVUPAgwww.thermofisher.com/2BV563CzQeVx21... https://www.thermofisher.com/2BV563CzQeVx21jTBA/hwiELf9Yb1w1/fARXBBIUJAo/SxI/-W1pkOVUPAg — 200 — 1005 B — 30 ms — h2https://api.userway.org/api/a11y-data/v0/page/https%3A%2F%2Fwww.thermofisher.com%2Fus%2Fen%2Fhome.html/MOBILE/WIDGET_ON/statusapi.userway.org/api/a11y-data/v0/pa... https://api.userway.org/api/a11y-data/v0/page/https%3A%2F%2Fwww.thermofisher.com%2Fus%2Fen%2Fhome.html/MOBILE/WIDGET_ON/status — 200 — 454 B — 77 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 7365ms · 538KB · $42/mo
www.thermofisher.com
Other
Costly
Execution 1727ms
Transfer 149 KB
Unused 20%
Monthly Cost $10/mo
Unattributable
Other
Costly
Execution 1495ms
Transfer 0 KB
Monthly Cost $9/mo
www.thermofisher.com
Other
Costly
Execution 1400ms
Transfer 71 KB
Monthly Cost $8/mo
assets.adobedtm.com
Other
Costly
Execution 772ms
Transfer 73 KB
Unused 29%
Monthly Cost $4/mo
www.thermofisher.com
Other
Costly
Execution 417ms
Transfer 6 KB
Monthly Cost $2/mo
www.thermofisher.com
Other
Costly
Execution 359ms
Transfer 25 KB
Monthly Cost $2/mo
www.thermofisher.com
Other
Costly
Execution 300ms
Transfer 12 KB
Monthly Cost $2/mo
www.thermofisher.com
Other
Optional
Execution 169ms
Transfer 9 KB
Monthly Cost $1/mo
cdn.userway.org
Other
Optional
Execution 156ms
Transfer 53 KB
Unused 62%
Monthly Cost $1/mo
www.thermofisher.com
Other
Optional
Execution 148ms
Transfer 45 KB
Unused 55%
Monthly Cost $1/mo
www.thermofisher.com
Other
Optional
Execution 113ms
Transfer 9 KB
Monthly Cost $1/mo
consent.truste.com
Other
Optional
Execution 107ms
Transfer 14 KB
Monthly Cost $1/mo
www.thermofisher.com
Other
Optional
Execution 85ms
Transfer 4 KB
Monthly Cost $0/mo
consent.trustarc.com
Other
Optional
Execution 60ms
Transfer 36 KB
Unused 71%
Monthly Cost $0/mo
www.thermofisher.com
Other
Optional
Execution 58ms
Transfer 30 KB
Monthly Cost $0/mo

These scripts may cost more than they're worth

  • www.thermofisher.com adds 1727ms and costs ~$10/month
  • Unattributable adds 1495ms and costs ~$9/month
  • www.thermofisher.com adds 1400ms and costs ~$8/month
  • assets.adobedtm.com adds 772ms and costs ~$4/month
  • www.thermofisher.com adds 417ms and costs ~$2/month
  • www.thermofisher.com adds 359ms and costs ~$2/month
  • www.thermofisher.com adds 300ms and costs ~$2/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

www.thermofisher.com takes 1727ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Unattributable takes 1495ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

www.thermofisher.com takes 1400ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

assets.adobedtm.com takes 772ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

www.thermofisher.com takes 417ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

www.thermofisher.com takes 359ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

www.thermofisher.com takes 300ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

62% of cdn.userway.org's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

55% of www.thermofisher.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

71% of consent.trustarc.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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