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https://news-medical.net

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
76
GRADE
C
FIX
4
REVIEW
3
PASS
8
INFO
2

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

Mobile Desktop
50
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
87
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

5.23 s

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

6.11 s

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

576 ms

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

0.001

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

5.23 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.

11.16 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
8 PASS 3 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 (1.3 MiB of 1.3 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Execution Cost
Action
2110ms total JS execution
FIX
2110ms total JS execution
Warning::
https://www.news-medical.net/bundles/js/desktop/ba...: 456ms CPU time
Warning::
https://www.news-medical.net/: 426ms CPU time
Warning::
Unattributable: 396ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-ZD4L...: 345ms CPU time
Info::
https://securepubads.g.doubleclick.net/pagead/mana...: 244ms CPU time
Warning::
Third-party scripts: 2110ms (100% of total)

Main Thread Breakdown

Script Evaluation 47% Other 18% Script Parsing & Compilation 16% Style & Layout 12% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://www.news-medical.net/bundles/js/desktop/base?v=davmpbHaim9x7QBU9ZoNMcVZxW-vTjLiJEAXXDz9x8s1456ms245ms123ms3rd
https://www.news-medical.net/426ms44ms14ms3rd
Unattributable396ms70ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-ZD4LNWPK1L345ms277ms65ms3rd
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946244ms161ms78ms3rd
https://cdn-ukwest.onetrust.com/scripttemplates/202601.1.0/otBannerSdk.js153ms78ms64ms3rd
https://securepubads.g.doubleclick.net/tag/js/gpt.js90ms76ms14ms3rd
F
JS Bundles
Action
13 scripts, 510 KB unused
FIX
13 scripts, 510 KB unused
Warning::
https://www.news-medical.net/bundles/js/desktop/ba...: 223 KB unused (79%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://securepubads.g.doubleclick.net/pagead/mana...: 142 KB unused (76%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn-ukwest.onetrust.com/scripttemplates/20...: 81 KB unused (64%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-ZD4L...: 64 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 510 KB
510 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.news-medical.net/bundles/js/desktop/base?v=davmpbHaim9x7QBU9ZoNMcVZxW-vTjLiJEAXXDz9x8s1283 KB223 KB (79%)✓3rd
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946187 KB142 KB (76%)✓3rd
https://cdn-ukwest.onetrust.com/scripttemplates/202601.1.0/otBannerSdk.js127 KB81 KB (64%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-ZD4LNWPK1L165 KB64 KB (39%)✓3rd
https://cdn-ukwest.onetrust.com/consent/f362e18d-20d8-4df3-ba3d-631ebffb71e2/f362e18d-20d8-4df3-ba3d-631ebffb71e2.json3 KB—✓3rd
https://www.news-medical.net/ads/show_ads.js?_=17768046846640 KB—✓3rd
https://plausible.io/js/script.manual.js2 KB—✓3rd
https://securepubads.g.doubleclick.net/tag/js/gpt.js34 KB—✓3rd
https://cdn-ukwest.onetrust.com/consent/f362e18d-20d8-4df3-ba3d-631ebffb71e2/019c1ab5-e12c-751d-a2cf-e86d3189c06c/en.json16 KB—✓3rd
https://cdn-ukwest.onetrust.com/scripttemplates/otSDKStub.js9 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

D
Page Weight Inventory
Action
60 resources · 1.3 MB · 510 KB savings available
FIX
60 resources · 1.3 MB · 510 KB savings available
Warning::
Page weight 332 KB over 1MB target
Got: 1.3 MB Expected: ≤ 1 MB
Info::
~510 KB of savings available
Warning::
59 third-party resources (100% of weight)
Info::
1 resources over 200KB
60 resources · 1.3 MiB · 59 third-party 332.0 KiB over 1MB target
JavaScript 64% · 861.8 KiB
Image 18% · 249.2 KiB
CSS 8% · 113.2 KiB
Font 5% · 66.7 KiB
Document 3% · 35.3 KiB
Other 2% · 29.7 KiB

~510.2 KiB of savings available

Remove unused JavaScript: 510.2 KiB
B
Page Weight Budget
1.3 MB transferred, 60 requests
REVIEW
1.3 MB transferred, 60 requests
Info::
Page weighs 3.5 MB (1.3 MB transferred)
Warning::
JavaScript is 843 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 843 KB
Info::
60 HTTP requests
Info::
Estimated 0.28 g CO2 per page load
1.3 MB / 2.4 MB budget
1.3 MB transferred
60 requests
0.28 g CO2 per page load
JavaScript 843.4 KiB 62%
Images 247.5 KiB 18%
CSS 108.6 KiB 8%
Fonts 66.7 KiB 5%
HTML 34.5 KiB 3%
Other 25.8 KiB 2%
Other 24.9 KiB 2%
Other 4.1 KiB 0%
Other 562 B 0%
0 2.4 MB 4.9 MB
Under budget

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

C
Image Optimization
Action
24 images, 0 KB saveable
REVIEW
24 images, 0 KB saveable
Warning::
data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.news-medical.net/themes/Standard/image... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.news-medical.net/images/ai-chat-icon.s... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.azonetwork.com/images/azonetwork_logo_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
24 images 248 KB
0 oversized -0 KB
9 legacy format
4 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

B
HTTP Caching
private
REVIEW
private
Info::
Cache-Control header is set
Got: private
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
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
4 fonts (67 KB)
PASS
4 fonts (67 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

67 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s FCP 5.2 s LCP 6.1 shttps://use.typekit.net/af/f18587/00000000000000007735a07a/30/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3l https://use.typekit.net/af/f18587/00000000000000007735a07a/30/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3 — 17.6 KiB — 33 ms — font-display: swapdata:application/x-font-ttf;charset=utf-8;base64,AAEAAAALAIAAAwAwT1MvMg8SDWgAAAC8AAAAYGNtYXCwAH9KAA…x-font-ttf;charset=utf-... data:application/x-font-ttf;charset=utf-8;base64,AAEAAAALAIAAAwAwT1MvMg8SDWgAAAC8AAAAYGNtYXCwAH9KAA… — 13.9 KiB — 45 ms — font-display: swaphttps://use.typekit.net/af/8939f9/00000000000000007735a061/30/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n7&v=3l https://use.typekit.net/af/8939f9/00000000000000007735a061/30/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n7&v=3 — 18.4 KiB — 10 ms — font-display: swaphttps://use.typekit.net/af/e3ca36/00000000000000000000e805/27/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n7&v=3l https://use.typekit.net/af/e3ca36/00000000000000000000e805/27/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n7&v=3 — 16.9 KiB — 5 ms — font-display: swap
l woff2 swap
Size 18 KB
Load time 33 ms
Start 92 ms
Risk FOUT — text flashes from fallback to web font
x-font-ttf;charset=utf-... unknown swap
Size 14 KB
Load time 45 ms
Start 266 ms
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 18 KB
Load time 10 ms
Start 303 ms
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 17 KB
Load time 5 ms
Start 304 ms
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)

Fixing the unchecked items could save ~4 KB and ~8 ms

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
6 hints, 0 missing preconnects
PASS
6 hints, 0 missing preconnects
Info::
Page uses 6 resource hint(s)

Current Resource Hints

preconnect
6
preload
—
dns-prefetch
—
prefetch
—

6 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
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
60 requests over 836ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s FCP 5.2 s LCP 6.1 shttps://news-medical.net// https://news-medical.net/ — 301 — 439 B — 39 ms — h2https://www.news-medical.net/www.news-medical.net/ https://www.news-medical.net/ — 200 — 34.5 KiB — 44 ms — h2https://www.news-medical.net/bundles/css/desktop/base?v=aZNCktlVAvRopw_omt11j5bc3UCHFufKBRnYpw8oWI81www.news-medical.net/bundles/css/de... https://www.news-medical.net/bundles/css/desktop/base?v=aZNCktlVAvRopw_omt11j5bc3UCHFufKBRnYpw8oWI81 — 200 — 107.1 KiB — 36 ms — h2https://use.typekit.net/af/f18587/00000000000000007735a07a/30/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3use.typekit.net/af/f18587/000000000... https://use.typekit.net/af/f18587/00000000000000007735a07a/30/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3 — 200 — 17.6 KiB — 33 ms — h2https://cdn-ukwest.onetrust.com/scripttemplates/otSDKStub.jscdn-ukwest.onetrust.com/scripttempl... https://cdn-ukwest.onetrust.com/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 74 ms — h2https://www.news-medical.net/bundles/js/desktop/base?v=davmpbHaim9x7QBU9ZoNMcVZxW-vTjLiJEAXXDz9x8s1www.news-medical.net/bundles/js/des... https://www.news-medical.net/bundles/js/desktop/base?v=davmpbHaim9x7QBU9ZoNMcVZxW-vTjLiJEAXXDz9x8s1 — 200 — 282.6 KiB — 45 ms — h2https://www.news-medical.net/themes/Standard/images/news_medical_and_life_sciences_logo_1000w.pngwww.news-medical.net/themes/Standar... https://www.news-medical.net/themes/Standard/images/news_medical_and_life_sciences_logo_1000w.png — 200 — 10.8 KiB — 32 ms — h2https://www.news-medical.net/image-handler/ts/20260421070946/ri/750/src/images/TopContentFeatureImage_17767697856604805.jpgwww.news-medical.net/image-handler/... https://www.news-medical.net/image-handler/ts/20260421070946/ri/750/src/images/TopContentFeatureImage_17767697856604805.jpg — 200 — 20.5 KiB — 33 ms — h2https://www.news-medical.net/image-handler/ts/20190530123213/ri/620/picture/2019/5/Cancer_cell_3D_-_Illustration_-_Nedelcu_Paul_Petru_A1_1bb1f2d6c09a4f1a91d2848d8848b135-620x480.jpgwww.news-medical.net/image-handler/... https://www.news-medical.net/image-handler/ts/20190530123213/ri/620/picture/2019/5/Cancer_cell_3D_-_Illustration_-_Nedelcu_Paul_Petru_A1_1bb1f2d6c09a4f1a91d2848d8848b135-620x480.jpg — 200 — 43.1 KiB — 19 ms — h2https://www.news-medical.net/image-handler/ts/20250701024502/ri/620/src/images/tags/TagImage-1940-4583911460656255915-620x480.jpgwww.news-medical.net/image-handler/... https://www.news-medical.net/image-handler/ts/20250701024502/ri/620/src/images/tags/TagImage-1940-4583911460656255915-620x480.jpg — 200 — 19.0 KiB — 13 ms — h2https://www.news-medical.net/image-handler/ts/20180830053305/ri/620/picture/2018/8/shutterstock_661229134_167e5e2c0e2340fcb03c79b37b41def7-620x480.jpgwww.news-medical.net/image-handler/... https://www.news-medical.net/image-handler/ts/20180830053305/ri/620/picture/2018/8/shutterstock_661229134_167e5e2c0e2340fcb03c79b37b41def7-620x480.jpg — 200 — 38.7 KiB — 49 ms — h2https://securepubads.g.doubleclick.net/tag/js/gpt.jssecurepubads.g.doubleclick.net/tag/... https://securepubads.g.doubleclick.net/tag/js/gpt.js — 200 — 33.6 KiB — 41 ms — h3https://www.news-medical.net/images/an-azonetwork-site.svgwww.news-medical.net/images/an-azon... https://www.news-medical.net/images/an-azonetwork-site.svg — 200 — 2.1 KiB — 25 ms — h2https://www.news-medical.net/image-handler/ts/20160606112955/ri/620/picture/2016/6/British_GP_talking_to_senior_couple_in_surgery-Monkey_Business_Images-2000_f6030d6ad6a14fd9b5373dd78745ad65-620x480.jpgwww.news-medical.net/image-handler/... https://www.news-medical.net/image-handler/ts/20160606112955/ri/620/picture/2016/6/British_GP_talking_to_senior_couple_in_surgery-Monkey_Business_Images-2000_f6030d6ad6a14fd9b5373dd78745ad65-620x480.jpg — 200 — 37.9 KiB — 30 ms — h2https://www.news-medical.net/image-handler/ts/20250709125252/ri/620/src/images/tags/TagImage-456-45847036712523159386-620x480.jpgwww.news-medical.net/image-handler/... https://www.news-medical.net/image-handler/ts/20250709125252/ri/620/src/images/tags/TagImage-456-45847036712523159386-620x480.jpg — 200 — 25.9 KiB — 50 ms — h2https://privacy-policy.truste.com/privacy-seal/seal?rid=80814776-9892-4bc0-a905-50180d9d0296privacy-policy.truste.com/privacy-s... https://privacy-policy.truste.com/privacy-seal/seal?rid=80814776-9892-4bc0-a905-50180d9d0296 — 200 — 16.3 KiB — 50 ms — http/1.1https://www.azonetwork.com/images/azonetwork_logo_footer_80.pngwww.azonetwork.com/images/azonetwor... https://www.azonetwork.com/images/azonetwork_logo_footer_80.png — 200 — 2.1 KiB — 59 ms — h2https://use.typekit.net/iio3fgy.cssuse.typekit.net/iio3fgy.css https://use.typekit.net/iio3fgy.css — 200 — 1.2 KiB — 12 ms — h2https://plausible.io/js/script.manual.jsplausible.io/js/script.manual.js https://plausible.io/js/script.manual.js — 200 — 1.8 KiB — 37 ms — h2https://www.news-medical.net/image-handler/ts/20250701121134/ri/620/src/images/tags/TagImage-1831-45839008033634269759-620x480.jpgwww.news-medical.net/image-handler/... https://www.news-medical.net/image-handler/ts/20250701121134/ri/620/src/images/tags/TagImage-1831-45839008033634269759-620x480.jpg — 200 — 11.4 KiB — 18 ms — h2https://www.news-medical.net/images/newsguard-logo.svgwww.news-medical.net/images/newsgua... https://www.news-medical.net/images/newsguard-logo.svg — 200 — 2.3 KiB — 23 ms — h2data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7data:image/gif;base64,R0lGODlhAQABA... data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7 — 200 — 0 B — 0 ms — datahttps://p.typekit.net/p.css?s=1&k=iio3fgy&ht=tk&f=2005.2009.2010.2001.2002.14541.14542.14545.14548&a=1725262&app=typekit&e=cssp.typekit.net/p.css?s=1&k=iio3fgy&h... 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h2https://thrtle.com/insync?vxii_pdid=&vxii_pid=12&vxii_pid1=10015&vxii_rcid=0176067b-28bb-4f0e-93b5-69d2033b89b6thrtle.com/insync?vxii_pdid=&vxii_p... https://thrtle.com/insync?vxii_pdid=&vxii_pid=12&vxii_pid1=10015&vxii_rcid=0176067b-28bb-4f0e-93b5-69d2033b89b6 — 200 — 139 B — 9 ms — h2https://analytics.google.com/g/collect?v=2&tid=G-ZD4LNWPK1L&gtm=45je64h1v9119571166za200zd9119571166&_p=1776804685072&_gaz=1&gcs=G111&gcd=13r3r3r3r5l1&npa=0&dma=0&_eu=AAAAAGA&are=1&cid=824769540.1776804685&frm=0&pscdl=noapi&rcb=1&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938468~117266401~117384406~118463262&sid=1776804685&sct=1&seg=0&dl=https%3A%2F%2Fwww.news-medical.net%2F&dt=Medical%20News%20%7C%20Medical%20Articles&_tu=QA&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.anonymize_ip=true&ep.content_group=Homepage&tfd=794analytics.google.com/g/collect?v=2&... https://analytics.google.com/g/collect?v=2&tid=G-ZD4LNWPK1L&gtm=45je64h1v9119571166za200zd9119571166&_p=1776804685072&_gaz=1&gcs=G111&gcd=13r3r3r3r5l1&npa=0&dma=0&_eu=AAAAAGA&are=1&cid=824769540.1776804685&frm=0&pscdl=noapi&rcb=1&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938468~117266401~117384406~118463262&sid=1776804685&sct=1&seg=0&dl=https%3A%2F%2Fwww.news-medical.net%2F&dt=Medical%20News%20%7C%20Medical%20Articles&_tu=QA&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.anonymize_ip=true&ep.content_group=Homepage&tfd=794 — 204 — 553 B — 35 ms — h2https://stats.g.doubleclick.net/g/collect?v=2&tid=G-ZD4LNWPK1L&cid=824769540.1776804685&gtm=45je64h1v9119571166za200zd9119571166&rcb=1&aip=1&dma=0&gcs=G111&gcd=13r3r3r3r5l1&npa=0&frm=0&tag_exp=0~115938465~115938468~117266401~117384406~118463262stats.g.doubleclick.net/g/collect?v... https://stats.g.doubleclick.net/g/collect?v=2&tid=G-ZD4LNWPK1L&cid=824769540.1776804685&gtm=45je64h1v9119571166za200zd9119571166&rcb=1&aip=1&dma=0&gcs=G111&gcd=13r3r3r3r5l1&npa=0&frm=0&tag_exp=0~115938465~115938468~117266401~117384406~118463262 — 204 — 562 B — 41 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 2110ms · 830KB · €34/mo
www.news-medical.net
Other
Costly
Execution 456ms
Transfer 283 KB
Unused 79%
Monthly Cost €7/mo
www.news-medical.net
Other
Costly
Execution 426ms
Transfer 35 KB
Monthly Cost €7/mo
Unattributable
Other
Costly
Execution 396ms
Transfer 0 KB
Monthly Cost €6/mo
Google Tag Manager
Tag Manager
Costly
Execution 345ms
Transfer 165 KB
Unused 39%
Monthly Cost €6/mo
securepubads.g.doubleclick.net
Other
Costly
Execution 244ms
Transfer 187 KB
Unused 76%
Monthly Cost €4/mo
cdn-ukwest.onetrust.com
Other
Optional
Execution 153ms
Transfer 127 KB
Unused 64%
Monthly Cost €2/mo
securepubads.g.doubleclick.net
Other
Optional
Execution 90ms
Transfer 34 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.news-medical.net adds 456ms and costs ~€7/month
  • www.news-medical.net adds 426ms and costs ~€7/month
  • Unattributable adds 396ms and costs ~€6/month
  • Google Tag Manager adds 345ms and costs ~€6/month
  • securepubads.g.doubleclick.net adds 244ms and costs ~€4/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.news-medical.net takes 456ms 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

79% of www.news-medical.net'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

www.news-medical.net takes 426ms 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 396ms 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

Google Tag Manager takes 345ms 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

securepubads.g.doubleclick.net takes 244ms 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

76% of securepubads.g.doubleclick.net'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

64% of cdn-ukwest.onetrust.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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