Skip to content
https://outbrain.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
69
GRADE
D
FIX
6
REVIEW
2
PASS
7
INFO
2

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

Mobile Desktop
34
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
89
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
92
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.

6.36 s

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

15.33 s

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

1.08 s

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

0.000

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

8.99 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.

15.41 s

Page Load Progression

594 ms
1.2 s
1.8 s
2.4 s
3.0 s
3.6 s
4.2 s
4.8 s
Checks
17
7 PASS 2 REVIEW 6 FIX
F
Page Weight Budget
Action
3.8 MB transferred, 61 requests
FIX
3.8 MB transferred, 61 requests
Warning::
Page weighs 6.7 MB (3.8 MB transferred)
Warning::
Images are 1.0 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.0 MB
Warning::
JavaScript is 904 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 904 KB
Info::
61 HTTP requests
Info::
Estimated 0.79 g CO2 per page load
3.8 MB / 2.4 MB budget
3.8 MB transferred
61 requests
0.79 g CO2 per page load
Other 1.8 MiB 47%
Images 1.0 MiB 27%
JavaScript 903.9 KiB 23%
CSS 37.4 KiB 1%
Fonts 32.4 KiB 1%
Other 26.2 KiB 1%
HTML 7.4 KiB 0%
Other 7.2 KiB 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

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

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 (3.8 MiB of 3.8 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
4452ms total JS execution
FIX
4452ms total JS execution
Warning::
https://fast.wistia.com/assets/external/E-v1.js: 1724ms CPU time
Warning::
Unattributable: 747ms CPU time
Warning::
https://fast.wistia.com/assets/external/engines/hl...: 737ms CPU time
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-MNM...: 489ms CPU time
Warning::
https://www.outbrain.com/script.js?version=4d2133b...: 435ms CPU time
Warning::
Third-party scripts: 4452ms (100% of total)

Main Thread Breakdown

Script Evaluation 60% Other 19% Style & Layout 10% Script Parsing & Compilation 7%
ScriptTotalScriptingParse/CompileParty
https://fast.wistia.com/assets/external/E-v1.js1724ms1164ms126ms3rd
Unattributable747ms145ms0ms3rd
https://fast.wistia.com/assets/external/engines/hls_video.js@4a7b909604c9049f14b616b11446fa0e8efdec42737ms605ms4ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MNMBTC489ms399ms79ms3rd
https://www.outbrain.com/script.js?version=4d2133b27bf2435ms237ms42ms3rd
https://cdn.cookielaw.org/scripttemplates/202508.1.0/otBannerSdk.js192ms80ms67ms3rd
https://www.outbrain.com/76ms7ms2ms3rd
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js?did=aa0c1c56-98fd-43ad-a88c-e158ec6af71c52ms40ms4ms3rd
D
JS Bundles
Action
10 scripts, 403 KB unused
FIX
10 scripts, 403 KB unused
Warning::
https://fast.wistia.com/assets/external/engines/hl...: 83 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://fast.wistia.com/assets/external/E-v1.js: 79 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.cookielaw.org/scripttemplates/202508.1...: 74 KB unused (62%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.outbrain.com/script.js?version=4d2133b...: 73 KB unused (71%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-MNM...: 73 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 403 KB
403 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://fast.wistia.com/assets/external/engines/hls_video.js@4a7b909604c9049f14b616b11446fa0e8efdec42159 KB83 KB (52%)✓3rd
https://fast.wistia.com/assets/external/E-v1.js162 KB79 KB (49%)✓3rd
https://cdn.cookielaw.org/scripttemplates/202508.1.0/otBannerSdk.js120 KB74 KB (62%)✓3rd
https://www.outbrain.com/script.js?version=4d2133b27bf2105 KB73 KB (71%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MNMBTC182 KB73 KB (40%)✓3rd
https://browser.sentry-cdn.com/9.6.1/bundle.min.js25 KB21 KB (86%)✓3rd
https://www.outbrain.com/script.js105 KB—✓3rd
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js?did=aa0c1c56-98fd-43ad-a88c-e158ec6af71c9 KB—✓3rd
https://fast.wistia.com/assets/external/playPauseLoadingControl.js@4a7b909604c9049f14b616b11446fa0e8efdec4220 KB—✓3rd
https://fast.wistia.com/assets/external/skipControls.js@4a7b909604c9049f14b616b11446fa0e8efdec4217 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

F
Page Weight Inventory
Action
61 resources · 3.8 MB · 403 KB savings available
FIX
61 resources · 3.8 MB · 403 KB savings available
Warning::
Page weight 2.8 MB over 1MB target
Got: 3.8 MB Expected: ≤ 1 MB
Info::
~403 KB of savings available
Warning::
60 third-party resources (100% of weight)
Info::
7 resources over 200KB
61 resources · 3.8 MiB · 60 third-party 2.8 MiB over 1MB target
Media 46% · 1.8 MiB
Image 27% · 1.0 MiB
JavaScript 23% · 903.9 KiB
CSS 1% · 41.9 KiB
Font 1% · 32.4 KiB
Other 1% · 28.5 KiB
Document 0% · 7.4 KiB

~403.0 KiB of savings available

Remove unused JavaScript: 403.0 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
Image Optimization
Action
23 images, 0 KB saveable
REVIEW
23 images, 0 KB saveable
Warning::
https://www.outbrain.com/images/pages/home/perform... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.outbrain.com/images/pages/home/perform... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.outbrain.com/images/pages/home/bottom-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.outbrain.com/images/logo-ob-direct.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.outbrain.com/images/pages/home/perform... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.outbrain.com/images/pages/home/perform... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
23 images 1.0 MB
0 oversized -0 KB
22 legacy format
6 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

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
2 fonts (32 KB)
PASS
2 fonts (32 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

32 KB total

Render-blocking

0

of 2

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 16.0 s FCP 6.4 s LCP 15.3 shttps://www.outbrain.com/fonts/icomoon/icomoon.woff2icomoon.woff2 https://www.outbrain.com/fonts/icomoon/icomoon.woff2 — 5.7 KiB — 28 ms — font-display: swaphttps://fonts.gstatic.com/s/plusjakartasans/v12/LDIoaomQNQcsA88c7O9yZ4KMCoOg4Ko20yygg_vb.woff2LDIoaomQNQcsA88c7O9yZ4K... https://fonts.gstatic.com/s/plusjakartasans/v12/LDIoaomQNQcsA88c7O9yZ4KMCoOg4Ko20yygg_vb.woff2 — 26.7 KiB — 12 ms — font-display: swap
icomoon.woff2 woff2 swap
Size 6 KB
Load time 28 ms
Start 263 ms
Risk FOUT — text flashes from fallback to web font
LDIoaomQNQcsA88c7O9yZ4K... woff2 swap
Size 27 KB
Load time 12 ms
Start 547 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)
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
3 hints, 0 missing preconnects
PASS
3 hints, 0 missing preconnects
Info::
Page uses 3 resource hint(s)

Current Resource Hints

preconnect
—
preload
3
dns-prefetch
—
prefetch
—

3 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
61 requests over 1847ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s FCP 6.4 s LCP 15.3 shttps://outbrain.com// https://outbrain.com/ — 301 — 182 B — 15 ms — h2https://www.outbrain.com/www.outbrain.com/ https://www.outbrain.com/ — 200 — 7.4 KiB — 232 ms — http/1.1https://www.outbrain.com/style.csswww.outbrain.com/style.css https://www.outbrain.com/style.css — 200 — 18.2 KiB — 14 ms — http/1.1https://www.outbrain.com/script.jswww.outbrain.com/script.js https://www.outbrain.com/script.js — 200 — 104.6 KiB — 46 ms — http/1.1https://www.outbrain.com/fonts/icomoon/icomoon.woff2www.outbrain.com/fonts/icomoon/icom... https://www.outbrain.com/fonts/icomoon/icomoon.woff2 — 200 — 5.7 KiB — 28 ms — http/1.1https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,200..800;1,200..800&display=swapfonts.googleapis.com/css2?family=Pl... https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,200..800;1,200..800&display=swap — 200 — 1.1 KiB — 135 ms — h2https://www.outbrain.com/style.css?version=4d2133b27bf2www.outbrain.com/style.css?version=... https://www.outbrain.com/style.css?version=4d2133b27bf2 — 200 — 18.2 KiB — 25 ms — http/1.1https://www.outbrain.com/images/logo-ob-direct.pngwww.outbrain.com/images/logo-ob-dir... https://www.outbrain.com/images/logo-ob-direct.png — 200 — 31.7 KiB — 29 ms — http/1.1https://www.outbrain.com/images/pages/home/performance__1.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance__1.png — 200 — 58.6 KiB — 32 ms — http/1.1https://fast.wistia.com/assets/external/E-v1.jsfast.wistia.com/assets/external/E-v... https://fast.wistia.com/assets/external/E-v1.js — 200 — 162.1 KiB — 70 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-MNMBTCwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-MNMBTC — 200 — 182.2 KiB — 293 ms — h2https://www.outbrain.com/images/pages/home/performance__2.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance__2.png — 200 — 409.2 KiB — 38 ms — http/1.1https://www.outbrain.com/images/pages/home/performance__3.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance__3.png — 200 — 53.7 KiB — 18 ms — http/1.1https://www.outbrain.com/images/pages/home/performance__4.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance__4.png — 200 — 36.7 KiB — 17 ms — http/1.1https://www.outbrain.com/assets/new-banner-close.pngwww.outbrain.com/assets/new-banner-... https://www.outbrain.com/assets/new-banner-close.png — 200 — 1.1 KiB — 23 ms — http/1.1https://www.outbrain.com/images/pages/home/ecoflow-circle.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/ecoflow-circle.png — 200 — 4.0 KiB — 23 ms — http/1.1https://www.outbrain.com/images/pages/home/torras-circle.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/torras-circle.png — 200 — 6.5 KiB — 15 ms — http/1.1https://www.outbrain.com/images/pages/home/hipto-circle.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/hipto-circle.png — 200 — 6.3 KiB — 15 ms — http/1.1https://www.outbrain.com/images/pages/home/bottom-cta-image-mobile.webpwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/bottom-cta-image-mobile.webp — 200 — 32.7 KiB — 12 ms — http/1.1https://www.outbrain.com/script.js?version=4d2133b27bf2www.outbrain.com/script.js?version=... https://www.outbrain.com/script.js?version=4d2133b27bf2 — 200 — 104.6 KiB — 18 ms — http/1.1https://browser.sentry-cdn.com/9.6.1/bundle.min.jsbrowser.sentry-cdn.com/9.6.1/bundle... https://browser.sentry-cdn.com/9.6.1/bundle.min.js — 200 — 24.8 KiB — 15 ms — h2https://www.outbrain.com/images/pages/home/hero-bg-mobile.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/hero-bg-mobile.png — 200 — 39.2 KiB — 34 ms — http/1.1https://www.outbrain.com/images/pages/home/hero-main-image.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/hero-main-image.png — 200 — 250.1 KiB — 40 ms — http/1.1https://www.outbrain.com/images/pages/home/partner-icon1.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/partner-icon1.svg — 200 — 22.9 KiB — 12 ms — http/1.1https://www.outbrain.com/images/pages/home/partner-icon2.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/partner-icon2.svg — 200 — 40.8 KiB — 23 ms — http/1.1https://www.outbrain.com/images/pages/home/partner-icon3.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/partner-icon3.svg — 200 — 16.4 KiB — 12 ms — http/1.1https://www.outbrain.com/images/pages/home/innovation_main_mobile.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/innovation_main_mobile.png — 200 — 38.3 KiB — 14 ms — http/1.1https://www.outbrain.com/images/pages/home/performance-icon1.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance-icon1.svg — 200 — 1.1 KiB — 8 ms — http/1.1https://www.outbrain.com/images/pages/home/performance-icon2.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance-icon2.svg — 200 — 1.5 KiB — 9 ms — http/1.1https://www.outbrain.com/images/pages/home/performance-icon3.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance-icon3.svg — 200 — 1.4 KiB — 471 ms — http/1.1
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s FCP 6.4 s LCP 15.3 shttps://outbrain.com// https://outbrain.com/ — 301 — 182 B — 15 ms — h2https://www.outbrain.com/www.outbrain.com/ https://www.outbrain.com/ — 200 — 7.4 KiB — 232 ms — http/1.1https://www.outbrain.com/style.csswww.outbrain.com/style.css https://www.outbrain.com/style.css — 200 — 18.2 KiB — 14 ms — http/1.1https://www.outbrain.com/script.jswww.outbrain.com/script.js https://www.outbrain.com/script.js — 200 — 104.6 KiB — 46 ms — http/1.1https://www.outbrain.com/fonts/icomoon/icomoon.woff2www.outbrain.com/fonts/icomoon/icom... https://www.outbrain.com/fonts/icomoon/icomoon.woff2 — 200 — 5.7 KiB — 28 ms — http/1.1https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,200..800;1,200..800&display=swapfonts.googleapis.com/css2?family=Pl... https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,200..800;1,200..800&display=swap — 200 — 1.1 KiB — 135 ms — h2https://www.outbrain.com/style.css?version=4d2133b27bf2www.outbrain.com/style.css?version=... https://www.outbrain.com/style.css?version=4d2133b27bf2 — 200 — 18.2 KiB — 25 ms — http/1.1https://www.outbrain.com/images/logo-ob-direct.pngwww.outbrain.com/images/logo-ob-dir... https://www.outbrain.com/images/logo-ob-direct.png — 200 — 31.7 KiB — 29 ms — http/1.1https://www.outbrain.com/images/pages/home/performance__1.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance__1.png — 200 — 58.6 KiB — 32 ms — http/1.1https://fast.wistia.com/assets/external/E-v1.jsfast.wistia.com/assets/external/E-v... https://fast.wistia.com/assets/external/E-v1.js — 200 — 162.1 KiB — 70 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-MNMBTCwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-MNMBTC — 200 — 182.2 KiB — 293 ms — h2https://www.outbrain.com/images/pages/home/performance__2.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance__2.png — 200 — 409.2 KiB — 38 ms — http/1.1https://www.outbrain.com/images/pages/home/performance__3.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance__3.png — 200 — 53.7 KiB — 18 ms — http/1.1https://www.outbrain.com/images/pages/home/performance__4.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance__4.png — 200 — 36.7 KiB — 17 ms — http/1.1https://www.outbrain.com/assets/new-banner-close.pngwww.outbrain.com/assets/new-banner-... https://www.outbrain.com/assets/new-banner-close.png — 200 — 1.1 KiB — 23 ms — http/1.1https://www.outbrain.com/images/pages/home/ecoflow-circle.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/ecoflow-circle.png — 200 — 4.0 KiB — 23 ms — http/1.1https://www.outbrain.com/images/pages/home/torras-circle.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/torras-circle.png — 200 — 6.5 KiB — 15 ms — http/1.1https://www.outbrain.com/images/pages/home/hipto-circle.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/hipto-circle.png — 200 — 6.3 KiB — 15 ms — http/1.1https://www.outbrain.com/images/pages/home/bottom-cta-image-mobile.webpwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/bottom-cta-image-mobile.webp — 200 — 32.7 KiB — 12 ms — http/1.1https://www.outbrain.com/script.js?version=4d2133b27bf2www.outbrain.com/script.js?version=... https://www.outbrain.com/script.js?version=4d2133b27bf2 — 200 — 104.6 KiB — 18 ms — http/1.1https://browser.sentry-cdn.com/9.6.1/bundle.min.jsbrowser.sentry-cdn.com/9.6.1/bundle... https://browser.sentry-cdn.com/9.6.1/bundle.min.js — 200 — 24.8 KiB — 15 ms — h2https://www.outbrain.com/images/pages/home/hero-bg-mobile.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/hero-bg-mobile.png — 200 — 39.2 KiB — 34 ms — http/1.1https://www.outbrain.com/images/pages/home/hero-main-image.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/hero-main-image.png — 200 — 250.1 KiB — 40 ms — http/1.1https://www.outbrain.com/images/pages/home/partner-icon1.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/partner-icon1.svg — 200 — 22.9 KiB — 12 ms — http/1.1https://www.outbrain.com/images/pages/home/partner-icon2.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/partner-icon2.svg — 200 — 40.8 KiB — 23 ms — http/1.1https://www.outbrain.com/images/pages/home/partner-icon3.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/partner-icon3.svg — 200 — 16.4 KiB — 12 ms — http/1.1https://www.outbrain.com/images/pages/home/innovation_main_mobile.pngwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/innovation_main_mobile.png — 200 — 38.3 KiB — 14 ms — http/1.1https://www.outbrain.com/images/pages/home/performance-icon1.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance-icon1.svg — 200 — 1.1 KiB — 8 ms — http/1.1https://www.outbrain.com/images/pages/home/performance-icon2.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance-icon2.svg — 200 — 1.5 KiB — 9 ms — http/1.1https://www.outbrain.com/images/pages/home/performance-icon3.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance-icon3.svg — 200 — 1.4 KiB — 471 ms — http/1.1https://www.outbrain.com/images/pages/home/performance-icon4.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/performance-icon4.svg — 200 — 1018 B — 208 ms — http/1.1https://www.outbrain.com/images/pages/home/quote.svgwww.outbrain.com/images/pages/home/... https://www.outbrain.com/images/pages/home/quote.svg — 200 — 1.1 KiB — 10 ms — http/1.1https://fast.wistia.com/embed/medias/dt5wq3wivc.jsonfast.wistia.com/embed/medias/dt5wq3... https://fast.wistia.com/embed/medias/dt5wq3wivc.json — 200 — 2.6 KiB — 15 ms — h2https://fonts.gstatic.com/s/plusjakartasans/v12/LDIoaomQNQcsA88c7O9yZ4KMCoOg4Ko20yygg_vb.woff2fonts.gstatic.com/s/plusjakartasans... https://fonts.gstatic.com/s/plusjakartasans/v12/LDIoaomQNQcsA88c7O9yZ4KMCoOg4Ko20yygg_vb.woff2 — 200 — 26.7 KiB — 12 ms — h3https://fast.wistia.com/assets/external/engines/hls_video.js@4a7b909604c9049f14b616b11446fa0e8efdec42fast.wistia.com/assets/external/eng... https://fast.wistia.com/assets/external/engines/hls_video.js@4a7b909604c9049f14b616b11446fa0e8efdec42 — 200 — 159.1 KiB — 14 ms — h2https://cdn.cookielaw.org/scripttemplates/otSDKStub.js?did=aa0c1c56-98fd-43ad-a88c-e158ec6af71ccdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js?did=aa0c1c56-98fd-43ad-a88c-e158ec6af71c — 200 — 9.1 KiB — 33 ms — h2https://fast.wistia.com/assets/images/blank.giffast.wistia.com/assets/images/blank... https://fast.wistia.com/assets/images/blank.gif — 200 — 1.4 KiB — 4 ms — h2https://fast.wistia.com/embed/medias/dt5wq3wivc.m3u8fast.wistia.com/embed/medias/dt5wq3... https://fast.wistia.com/embed/medias/dt5wq3wivc.m3u8 — 200 — 1.3 KiB — 5 ms — h2https://embed-cloudfront.wistia.com/deliveries/25443a62837dcd5c0dcd30f5e0f834dbbf5b239a.m3u8embed-cloudfront.wistia.com/deliver... https://embed-cloudfront.wistia.com/deliveries/25443a62837dcd5c0dcd30f5e0f834dbbf5b239a.m3u8 — 200 — 1.2 KiB — 36 ms — h2https://cdn.cookielaw.org/consent/aa0c1c56-98fd-43ad-a88c-e158ec6af71c/aa0c1c56-98fd-43ad-a88c-e158ec6af71c.jsoncdn.cookielaw.org/consent/aa0c1c56-... https://cdn.cookielaw.org/consent/aa0c1c56-98fd-43ad-a88c-e158ec6af71c/aa0c1c56-98fd-43ad-a88c-e158ec6af71c.json — 200 — 2.5 KiB — 28 ms — h2https://embed-cloudfront.wistia.com/deliveries/25443a62837dcd5c0dcd30f5e0f834dbbf5b239a.m3u8/seg-1-v1-a1.tsembed-cloudfront.wistia.com/deliver... https://embed-cloudfront.wistia.com/deliveries/25443a62837dcd5c0dcd30f5e0f834dbbf5b239a.m3u8/seg-1-v1-a1.ts — 200 — 624.4 KiB — 38 ms — h2https://fast.wistia.com/assets/external/playPauseLoadingControl.js@4a7b909604c9049f14b616b11446fa0e8efdec42fast.wistia.com/assets/external/pla... https://fast.wistia.com/assets/external/playPauseLoadingControl.js@4a7b909604c9049f14b616b11446fa0e8efdec42 — 200 — 20.3 KiB — 10 ms — h2https://fast.wistia.com/assets/external/skipControls.js@4a7b909604c9049f14b616b11446fa0e8efdec42fast.wistia.com/assets/external/ski... https://fast.wistia.com/assets/external/skipControls.js@4a7b909604c9049f14b616b11446fa0e8efdec42 — 200 — 17.2 KiB — 9 ms — h2https://geolocation.onetrust.com/cookieconsentpub/v1/geo/locationgeolocation.onetrust.com/cookiecons... https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location — 200 — 308 B — 34 ms — h2https://www.googletagmanager.com/a?v=3&t=l&pid=850679726&rv=64f0&tag_exp=0~115616986~115938466~115938468~117266400~117384406~118289195&u=AAAAAIACAAAAAACA&ut=AAAI&h=Ag&gtm=45He64f0v6250359za200zd6250359&ccid=250359&cid=GTM-MNMBTC&l=L266.S13.Y3.B45.E294.I640.TC41.HTC1.C1~gtm.init_consent.S8.V7.E177.TS5cvt.TI1347.TE4~gtm.init.S2.V2.E127~gtm.js.S3.V3.E143.TS6paused.TI379.TE0.TS6paused.TI422.TE0.TS6paused.TI1266.TE0.TS6paused.TI1267.TE0.TS5hl.TI1373.TE0.TS5hl.TI1374.TE0.TS5hl.TI1375.TE0.TS5hl.TI1376.TE0.TS5hl.TI1377.TE0.TS5hl.TI1379.TE0.TS5hl.TI1380.TE0.TS5hl.TI1381.TE0.TS5hl.TI1382.TE0.TS5hl.TI1383.TE0.TS5hl.TI1384.TE0.TS5hl.TI1385.TE0.TS5hl.TI1386.TE0.TS5hl.TI1387.TE0.TS5hl.TI1388.TE0.TS5hl.TI1389.TE0.TS5hl.TI1390.TE0.TS5hl.TI1392.TE0.TS5hl.TI1393.TE0.TS5hl.TI1394.TE0.TS5hl.TI1397.TE0.TS5tl.TI1398.TE0.TS5tl.TI1399.TE0.TS5tl.TI1400.TE0.TS5tl.TI1404.TE0.TS5tg.TI1405.TE0.TS5tg.TI1409.TE0.TS5tg.TI1413.TE0.TS5fsl.TI1418.TE0.TS5tg.TI1419.TE0.TS5tg.TI1421.TE0.TS5html.TI1367.TE5~gtm.dom.S2.V2.E103~gtm.load.S2.V2.E75.TS6paused.TI486.TE0.TS5sdl.TI1378.TE4.TS5sdl.TI1391.TE0.TS5sdl.TI1395.TE0www.googletagmanager.com/a?v=3&t=l&... https://www.googletagmanager.com/a?v=3&t=l&pid=850679726&rv=64f0&tag_exp=0~115616986~115938466~115938468~117266400~117384406~118289195&u=AAAAAIACAAAAAACA&ut=AAAI&h=Ag&gtm=45He64f0v6250359za200zd6250359&ccid=250359&cid=GTM-MNMBTC&l=L266.S13.Y3.B45.E294.I640.TC41.HTC1.C1~gtm.init_consent.S8.V7.E177.TS5cvt.TI1347.TE4~gtm.init.S2.V2.E127~gtm.js.S3.V3.E143.TS6paused.TI379.TE0.TS6paused.TI422.TE0.TS6paused.TI1266.TE0.TS6paused.TI1267.TE0.TS5hl.TI1373.TE0.TS5hl.TI1374.TE0.TS5hl.TI1375.TE0.TS5hl.TI1376.TE0.TS5hl.TI1377.TE0.TS5hl.TI1379.TE0.TS5hl.TI1380.TE0.TS5hl.TI1381.TE0.TS5hl.TI1382.TE0.TS5hl.TI1383.TE0.TS5hl.TI1384.TE0.TS5hl.TI1385.TE0.TS5hl.TI1386.TE0.TS5hl.TI1387.TE0.TS5hl.TI1388.TE0.TS5hl.TI1389.TE0.TS5hl.TI1390.TE0.TS5hl.TI1392.TE0.TS5hl.TI1393.TE0.TS5hl.TI1394.TE0.TS5hl.TI1397.TE0.TS5tl.TI1398.TE0.TS5tl.TI1399.TE0.TS5tl.TI1400.TE0.TS5tl.TI1404.TE0.TS5tg.TI1405.TE0.TS5tg.TI1409.TE0.TS5tg.TI1413.TE0.TS5fsl.TI1418.TE0.TS5tg.TI1419.TE0.TS5tg.TI1421.TE0.TS5html.TI1367.TE5~gtm.dom.S2.V2.E103~gtm.load.S2.V2.E75.TS6paused.TI486.TE0.TS5sdl.TI1378.TE4.TS5sdl.TI1391.TE0.TS5sdl.TI1395.TE0 — 200 — 60 B — 54 ms — h2https://www.outbrain.com/favicon.icowww.outbrain.com/favicon.ico https://www.outbrain.com/favicon.ico — 200 — 7.1 KiB — 11 ms — http/1.1https://cdn.cookielaw.org/scripttemplates/202508.1.0/otBannerSdk.jscdn.cookielaw.org/scripttemplates/2... https://cdn.cookielaw.org/scripttemplates/202508.1.0/otBannerSdk.js — 200 — 120.0 KiB — 29 ms — h2https://distillery.wistia.com/xdistillery.wistia.com/x https://distillery.wistia.com/x — 204 — 295 B — 163 ms — h2https://embed-cloudfront.wistia.com/deliveries/7b084aeba6e2d2ca22e479e508bec5a54f083a19.m3u8embed-cloudfront.wistia.com/deliver... https://embed-cloudfront.wistia.com/deliveries/7b084aeba6e2d2ca22e479e508bec5a54f083a19.m3u8 — 200 — 1.2 KiB — 7 ms — h2https://embed-cloudfront.wistia.com/deliveries/7b084aeba6e2d2ca22e479e508bec5a54f083a19.m3u8/seg-2-v1-a1.tsembed-cloudfront.wistia.com/deliver... https://embed-cloudfront.wistia.com/deliveries/7b084aeba6e2d2ca22e479e508bec5a54f083a19.m3u8/seg-2-v1-a1.ts — 200 — 227.4 KiB — 16 ms — h2https://cdn.cookielaw.org/consent/aa0c1c56-98fd-43ad-a88c-e158ec6af71c/0198f13f-8894-7560-97ab-b675bd34b3f0/en.jsoncdn.cookielaw.org/consent/aa0c1c56-... https://cdn.cookielaw.org/consent/aa0c1c56-98fd-43ad-a88c-e158ec6af71c/0198f13f-8894-7560-97ab-b675bd34b3f0/en.json — 200 — 13.0 KiB — 22 ms — h2https://cdn.cookielaw.org/scripttemplates/202508.1.0/assets/otCenterRounded.jsoncdn.cookielaw.org/scripttemplates/2... https://cdn.cookielaw.org/scripttemplates/202508.1.0/assets/otCenterRounded.json — 200 — 2.8 KiB — 21 ms — h2https://cdn.cookielaw.org/scripttemplates/202508.1.0/assets/otCookieSettingsButton.jsoncdn.cookielaw.org/scripttemplates/2... https://cdn.cookielaw.org/scripttemplates/202508.1.0/assets/otCookieSettingsButton.json — 200 — 2.1 KiB — 15 ms — h2https://cdn.cookielaw.org/scripttemplates/202508.1.0/assets/otCommonStyles.csscdn.cookielaw.org/scripttemplates/2... https://cdn.cookielaw.org/scripttemplates/202508.1.0/assets/otCommonStyles.css — 200 — 4.5 KiB — 20 ms — h2https://embed-cloudfront.wistia.com/deliveries/7b084aeba6e2d2ca22e479e508bec5a54f083a19.m3u8/seg-3-v1-a1.tsembed-cloudfront.wistia.com/deliver... https://embed-cloudfront.wistia.com/deliveries/7b084aeba6e2d2ca22e479e508bec5a54f083a19.m3u8/seg-3-v1-a1.ts — 200 — 218.5 KiB — 21 ms — h2https://pipedream.wistia.com/mput?topic=metricspipedream.wistia.com/mput?topic=met... https://pipedream.wistia.com/mput?topic=metrics — 200 — 332 B — 136 ms — h2https://embed-cloudfront.wistia.com/deliveries/7b084aeba6e2d2ca22e479e508bec5a54f083a19.m3u8/seg-4-v1-a1.tsembed-cloudfront.wistia.com/deliver... https://embed-cloudfront.wistia.com/deliveries/7b084aeba6e2d2ca22e479e508bec5a54f083a19.m3u8/seg-4-v1-a1.ts — 200 — 283.2 KiB — 17 ms — h2https://embed-cloudfront.wistia.com/deliveries/7b084aeba6e2d2ca22e479e508bec5a54f083a19.m3u8/seg-5-v1-a1.tsembed-cloudfront.wistia.com/deliver... https://embed-cloudfront.wistia.com/deliveries/7b084aeba6e2d2ca22e479e508bec5a54f083a19.m3u8/seg-5-v1-a1.ts — 200 — 286.2 KiB — 16 ms — h2https://embed-cloudfront.wistia.com/deliveries/7b084aeba6e2d2ca22e479e508bec5a54f083a19.m3u8/seg-6-v1-a1.tsembed-cloudfront.wistia.com/deliver... https://embed-cloudfront.wistia.com/deliveries/7b084aeba6e2d2ca22e479e508bec5a54f083a19.m3u8/seg-6-v1-a1.ts — 200 — 159.7 KiB — 14 ms — h2https://distillery.wistia.com/xdistillery.wistia.com/x https://distillery.wistia.com/x — 204 — 294 B — 121 ms — h2https://pipedream.wistia.com/mput?topic=metricspipedream.wistia.com/mput?topic=met... https://pipedream.wistia.com/mput?topic=metrics — 200 — 332 B — 136 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 4452ms · 744KB · €48/mo
fast.wistia.com
Other
Costly
Execution 1724ms
Transfer 162 KB
Unused 49%
Monthly Cost €19/mo
Unattributable
Other
Costly
Execution 747ms
Transfer 0 KB
Monthly Cost €8/mo
fast.wistia.com
Other
Costly
Execution 737ms
Transfer 159 KB
Unused 52%
Monthly Cost €8/mo
Google Tag Manager
Tag Manager
Costly
Execution 489ms
Transfer 182 KB
Unused 40%
Monthly Cost €5/mo
www.outbrain.com
Other
Costly
Execution 435ms
Transfer 105 KB
Unused 71%
Monthly Cost €5/mo
OneTrust
Consent
Essential
Execution 192ms
Transfer 120 KB
Unused 62%
Monthly Cost €2/mo
www.outbrain.com
Other
Optional
Execution 76ms
Transfer 7 KB
Monthly Cost €1/mo
OneTrust
Consent
Essential
Execution 52ms
Transfer 9 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • fast.wistia.com adds 1724ms and costs ~€19/month
  • Unattributable adds 747ms and costs ~€8/month
  • fast.wistia.com adds 737ms and costs ~€8/month
  • Google Tag Manager adds 489ms and costs ~€5/month
  • www.outbrain.com adds 435ms and costs ~€5/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

fast.wistia.com takes 1724ms 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 747ms 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

fast.wistia.com takes 737ms 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

52% of fast.wistia.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

Google Tag Manager takes 489ms 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.outbrain.com takes 435ms 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

71% of www.outbrain.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

62% of OneTrust'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.

Send Feedback