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https://loreal.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
83
GRADE
B
FIX
3
REVIEW
3
PASS
7
INFO
2

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

Mobile Desktop
84
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.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
83
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.

808 ms

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

1.75 s

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

214 ms

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.

1.39 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.

2.23 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
15
7 PASS 3 REVIEW 3 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 (1.6 MiB of 1.6 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
43 resources · 1.6 MB · 276 KB savings available
FIX
43 resources · 1.6 MB · 276 KB savings available
Warning::
Page weight 645 KB over 1MB target
Got: 1.6 MB Expected: ≤ 1 MB
Info::
~276 KB of savings available
Warning::
42 third-party resources (100% of weight)
Info::
2 resources over 200KB
43 resources · 1.6 MiB · 42 third-party 644.5 KiB over 1MB target
Image 44% · 731.7 KiB
JavaScript 34% · 559.5 KiB
Font 16% · 258.7 KiB
CSS 3% · 45.1 KiB
Other 2% · 38.5 KiB
Document 2% · 35.0 KiB

~275.9 KiB of savings available

Remove unused JavaScript: 275.9 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
1.6 MB transferred, 43 requests
REVIEW
1.6 MB transferred, 43 requests
Info::
Page weighs 3.4 MB (1.6 MB transferred)
Warning::
JavaScript is 560 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 560 KB
Info::
Fonts are 259 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 259 KB
Info::
43 HTTP requests
Info::
Estimated 0.34 g CO2 per page load
1.6 MB / 2.4 MB budget
1.6 MB transferred
43 requests
0.34 g CO2 per page load
Images 728.5 KiB 44%
JavaScript 559.5 KiB 34%
Fonts 258.7 KiB 16%
CSS 40.5 KiB 2%
Other 37.4 KiB 2%
HTML 34.4 KiB 2%
Other 4.0 KiB 0%
Other 3.9 KiB 0%
Other 1.5 KiB 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

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

C
JS Execution Cost
Action
1208ms total JS execution
REVIEW
1208ms total JS execution
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-5WD...: 306ms CPU time
Warning::
https://www.loreal.com/themes/LorealCorp/bundle.js...: 278ms CPU time
Info::
https://www.loreal.com/en/: 216ms CPU time
Info::
Unattributable: 162ms CPU time
Info::
https://cdn.cookielaw.org/scripttemplates/202511.1...: 109ms CPU time
Warning::
Third-party scripts: 1208ms (100% of total)

Main Thread Breakdown

Script Evaluation 58% Other 19% Style & Layout 10% Script Parsing & Compilation 5% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://www.googletagmanager.com/gtm.js?id=GTM-5WD4R5306ms282ms20ms3rd
https://www.loreal.com/themes/LorealCorp/bundle.js?v=3.34.0-release00000003278ms200ms7ms3rd
https://www.loreal.com/en/216ms18ms2ms3rd
Unattributable162ms25ms0ms3rd
https://cdn.cookielaw.org/scripttemplates/202511.1.0/otBannerSdk.js109ms74ms20ms3rd
https://www.loreal.com/cdn-cgi/challenge-platform/scripts/jsd/main.js83ms80ms1ms3rd
https://www.loreal.com/themes/LorealCorp/vendors.bundle.js?v=3.34.0-release0000000353ms3ms17ms3rd
C
JS Bundles
Action
10 scripts, 276 KB unused
REVIEW
10 scripts, 276 KB unused
Warning::
https://www.loreal.com/themes/LorealCorp/vendors.b...: 94 KB unused (56%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.cookielaw.org/scripttemplates/202511.1...: 66 KB unused (53%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-5WD...: 65 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.loreal.com/themes/LorealCorp/bundle.js...: 50 KB unused (69%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 276 KB
276 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.loreal.com/themes/LorealCorp/vendors.bundle.js?v=3.34.0-release00000003170 KB94 KB (56%)✓3rd
https://cdn.cookielaw.org/scripttemplates/202511.1.0/otBannerSdk.js124 KB66 KB (53%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-5WD4R5168 KB65 KB (39%)✓3rd
https://www.loreal.com/themes/LorealCorp/bundle.js?v=3.34.0-release0000000373 KB50 KB (69%)✓3rd
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js9 KB—✓3rd
https://ecb.qualquantsignals.com/invite/loreal2021/ecb_intercept.js1 KB—✓3rd
https://www.loreal.com/themes/LorealCorp/modal.js0 KB—✓3rd
https://www.loreal.com/themes/LorealCorp/chunk-2d0b59e4.js2 KB—✓3rd
https://www.loreal.com/themes/LorealCorp/country-selector.js1 KB—✓3rd
https://www.loreal.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?11 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

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
Image Optimization
10 images, 0 KB saveable
PASS
10 images, 0 KB saveable
Info::
All images are well-optimized
10 images 728 KB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
A+
Font Loading
6 fonts (259 KB)
PASS
6 fonts (259 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

6

259 KB total

Render-blocking

0

of 6

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s FCP 808 ms LCP 1.7 sdata:font/woff;base64,d09GRk9UVE8AAAwgAAsAAAAAD8QAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABDRkYgAAAC4AAACN8AA…woff;base64,d09GRk9UVE8... data:font/woff;base64,d09GRk9UVE8AAAwgAAsAAAAAD8QAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABDRkYgAAAC4AAACN8AA… — 3.0 KiB — 42 ms — font-display: swaphttps://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Bold.woff2HelveticaNowDisplayW05-... https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Bold.woff2 — 62.2 KiB — 25 ms — font-display: swaphttps://www.loreal.com/themes/LorealCorp/fonts/Halesworth-Bold.woff2Halesworth-Bold.woff2 https://www.loreal.com/themes/LorealCorp/fonts/Halesworth-Bold.woff2 — 36.4 KiB — 26 ms — font-display: swaphttps://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Lt.woff2HelveticaNowDisplayW05-... https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Lt.woff2 — 60.7 KiB — 23 ms — font-display: swaphttps://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Rg.woff2HelveticaNowDisplayW05-... https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Rg.woff2 — 57.2 KiB — 20 ms — font-display: swaphttps://www.loreal.com/themes/LorealCorp/fonts/Halesworth-Medium.woff2Halesworth-Medium.woff2 https://www.loreal.com/themes/LorealCorp/fonts/Halesworth-Medium.woff2 — 39.3 KiB — 49 ms — font-display: swap
woff;base64,d09GRk9UVE8... woff swap
Size 3 KB
Load time 42 ms
Start 368 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
HelveticaNowDisplayW05-... woff2 swap
Size 62 KB
Load time 25 ms
Start 391 ms
Risk FOUT — text flashes from fallback to web font
Halesworth-Bold.woff2 woff2 swap
Size 36 KB
Load time 26 ms
Start 391 ms
Risk FOUT — text flashes from fallback to web font
HelveticaNowDisplayW05-... woff2 swap
Size 61 KB
Load time 23 ms
Start 391 ms
Risk FOUT — text flashes from fallback to web font
HelveticaNowDisplayW05-... woff2 swap
Size 57 KB
Load time 20 ms
Start 443 ms
Risk FOUT — text flashes from fallback to web font
Halesworth-Medium.woff2 woff2 swap
Size 39 KB
Load time 49 ms
Start 710 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 ~1 KB and ~2 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
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
43 requests over 1870ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 808 ms LCP 1.7 shttps://loreal.com// https://loreal.com/ — 301 — 335 B — 27 ms — h2https://www.loreal.com/www.loreal.com/ https://www.loreal.com/ — 301 — 584 B — 101 ms — h2https://www.loreal.com/en/www.loreal.com/en/ https://www.loreal.com/en/ — 200 — 34.4 KiB — 155 ms — h2https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 47 ms — h2https://www.loreal.com/themes/LorealCorp/css/bundle.css?v=3.34.0-release00000003www.loreal.com/themes/LorealCorp/cs... https://www.loreal.com/themes/LorealCorp/css/bundle.css?v=3.34.0-release00000003 — 200 — 39.0 KiB — 32 ms — h2https://www.loreal.com/themes/LorealCorp/css/chunk-04eeced9.csswww.loreal.com/themes/LorealCorp/cs... https://www.loreal.com/themes/LorealCorp/css/chunk-04eeced9.css — 200 — 1.5 KiB — 29 ms — h2https://www.loreal.com/themes/LorealCorp/vendors.bundle.js?v=3.34.0-release00000003www.loreal.com/themes/LorealCorp/ve... https://www.loreal.com/themes/LorealCorp/vendors.bundle.js?v=3.34.0-release00000003 — 200 — 169.7 KiB — 39 ms — h2https://www.loreal.com/themes/LorealCorp/bundle.js?v=3.34.0-release00000003www.loreal.com/themes/LorealCorp/bu... https://www.loreal.com/themes/LorealCorp/bundle.js?v=3.34.0-release00000003 — 200 — 72.9 KiB — 36 ms — h2https://ecb.qualquantsignals.com/invite/loreal2021/ecb_intercept.jsecb.qualquantsignals.com/invite/lor... https://ecb.qualquantsignals.com/invite/loreal2021/ecb_intercept.js — 200 — 880 B — 225 ms — h2https://cdn.cookielaw.org/consent/66976695-4e60-4bfb-a909-c0449b1bd801/66976695-4e60-4bfb-a909-c0449b1bd801.jsoncdn.cookielaw.org/consent/66976695-... https://cdn.cookielaw.org/consent/66976695-4e60-4bfb-a909-c0449b1bd801/66976695-4e60-4bfb-a909-c0449b1bd801.json — 200 — 2.7 KiB — 31 ms — h2data:font/woff;base64,d09GRk9UVE8AAAwgAAsAAAAAD8QAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABDRkYgAAAC4AAACN8AA…data:font/woff;base64,d09GRk9UVE8AA... data:font/woff;base64,d09GRk9UVE8AAAwgAAsAAAAAD8QAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABDRkYgAAAC4AAACN8AA… — 200 — 3.0 KiB — 42 ms — datahttps://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Bold.woff2www.loreal.com/themes/LorealCorp/fo... https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Bold.woff2 — 200 — 62.2 KiB — 25 ms — h2https://www.loreal.com/themes/LorealCorp/fonts/Halesworth-Bold.woff2www.loreal.com/themes/LorealCorp/fo... https://www.loreal.com/themes/LorealCorp/fonts/Halesworth-Bold.woff2 — 200 — 36.4 KiB — 26 ms — h2https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Lt.woff2www.loreal.com/themes/LorealCorp/fo... https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Lt.woff2 — 200 — 60.7 KiB — 23 ms — h2https://geolocation.onetrust.com/cookieconsentpub/v1/geo/locationgeolocation.onetrust.com/cookiecons... https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location — 200 — 286 B — 36 ms — h2https://www.loreal.com/themes/LorealCorp/manifest.jsonwww.loreal.com/themes/LorealCorp/ma... https://www.loreal.com/themes/LorealCorp/manifest.json — 200 — 1.5 KiB — 101 ms — h2https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Rg.woff2www.loreal.com/themes/LorealCorp/fo... https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Rg.woff2 — 200 — 57.2 KiB — 20 ms — h2https://www.loreal.com/themes/LorealCorp/modal.jswww.loreal.com/themes/LorealCorp/mo... https://www.loreal.com/themes/LorealCorp/modal.js — 200 — 396 B — 17 ms — h2https://www.loreal.com/themes/LorealCorp/chunk-2d0b59e4.jswww.loreal.com/themes/LorealCorp/ch... https://www.loreal.com/themes/LorealCorp/chunk-2d0b59e4.js — 200 — 1.9 KiB — 16 ms — h2https://www.loreal.com/-/media/project/loreal/brand-sites/corp/master/lcorp/6-careers/2026/hr-campaign-life-is-too-short-for-a-boring-career/homepage-lits-banner-desk.jpg?rev=7771d64a2f244a79be3f284622f9ec61www.loreal.com/-/media/project/lore... https://www.loreal.com/-/media/project/loreal/brand-sites/corp/master/lcorp/6-careers/2026/hr-campaign-life-is-too-short-for-a-boring-career/homepage-lits-banner-desk.jpg?rev=7771d64a2f244a79be3f284622f9ec61 — 200 — 203.7 KiB — 26 ms — h2https://www.loreal.com/-/media/project/loreal/brand-sites/corp/master/lcorp/essentiality-of-beauty/2025/kv-eob-hero-banner.jpg?rev=dd55e356b9834341bed1e3d626ac2c35www.loreal.com/-/media/project/lore... https://www.loreal.com/-/media/project/loreal/brand-sites/corp/master/lcorp/essentiality-of-beauty/2025/kv-eob-hero-banner.jpg?rev=dd55e356b9834341bed1e3d626ac2c35 — 200 — 162.8 KiB — 51 ms — h2data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=data:image/gif;base64,R0lGODlhAQABA... data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs= — 200 — 0 B — 0 ms — datahttps://www.loreal.com/-/media/project/loreal/brand-sites/corp/master/lcorp/1-home/2026/rif/2025-annual-results-l-oreal-groupe-desk.jpg?rev=f3ea0dd9e08445f68bfa584716867bdawww.loreal.com/-/media/project/lore... https://www.loreal.com/-/media/project/loreal/brand-sites/corp/master/lcorp/1-home/2026/rif/2025-annual-results-l-oreal-groupe-desk.jpg?rev=f3ea0dd9e08445f68bfa584716867bda — 200 — 268.6 KiB — 51 ms — h2https://www.loreal.com/-/media/project/loreal/brand-sites/corp/master/lcorp/press-releases/group/2026/loreal-completes-the-acquisition-of-kering-beaute/loreal-completes-the-acquisition-of-kering-beaute-kv-desk.jpg?rev=fee7fba217524475bc7cd0facad43770www.loreal.com/-/media/project/lore... https://www.loreal.com/-/media/project/loreal/brand-sites/corp/master/lcorp/press-releases/group/2026/loreal-completes-the-acquisition-of-kering-beaute/loreal-completes-the-acquisition-of-kering-beaute-kv-desk.jpg?rev=fee7fba217524475bc7cd0facad43770 — 200 — 15.7 KiB — 18 ms — h2https://www.loreal.com/themes/LorealCorp/fonts/Halesworth-Medium.woff2www.loreal.com/themes/LorealCorp/fo... https://www.loreal.com/themes/LorealCorp/fonts/Halesworth-Medium.woff2 — 200 — 39.3 KiB — 49 ms — h2https://cdn.cookielaw.org/scripttemplates/202511.1.0/otBannerSdk.jscdn.cookielaw.org/scripttemplates/2... https://cdn.cookielaw.org/scripttemplates/202511.1.0/otBannerSdk.js — 200 — 124.4 KiB — 33 ms — h2https://www.loreal.com/themes/LorealCorp/country-selector.jswww.loreal.com/themes/LorealCorp/co... https://www.loreal.com/themes/LorealCorp/country-selector.js — 200 — 793 B — 16 ms — h2https://www.loreal.com/cdn-cgi/challenge-platform/scripts/jsd/main.jswww.loreal.com/cdn-cgi/challenge-pl... https://www.loreal.com/cdn-cgi/challenge-platform/scripts/jsd/main.js — 302 — 371 B — 19 ms — h2https://www.loreal.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?www.loreal.com/cdn-cgi/challenge-pl... https://www.loreal.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js? — 200 — 11.4 KiB — 12 ms — h2https://cdn.cookielaw.org/consent/66976695-4e60-4bfb-a909-c0449b1bd801/018e12f7-7cc2-7309-af99-c42de5e8a408/en.jsoncdn.cookielaw.org/consent/66976695-... https://cdn.cookielaw.org/consent/66976695-4e60-4bfb-a909-c0449b1bd801/018e12f7-7cc2-7309-af99-c42de5e8a408/en.json — 200 — 15.7 KiB — 26 ms — h2
0 ms 500 ms 1.0 s 1.5 s FCP 808 ms LCP 1.7 shttps://loreal.com// https://loreal.com/ — 301 — 335 B — 27 ms — h2https://www.loreal.com/www.loreal.com/ https://www.loreal.com/ — 301 — 584 B — 101 ms — h2https://www.loreal.com/en/www.loreal.com/en/ https://www.loreal.com/en/ — 200 — 34.4 KiB — 155 ms — h2https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 47 ms — h2https://www.loreal.com/themes/LorealCorp/css/bundle.css?v=3.34.0-release00000003www.loreal.com/themes/LorealCorp/cs... https://www.loreal.com/themes/LorealCorp/css/bundle.css?v=3.34.0-release00000003 — 200 — 39.0 KiB — 32 ms — h2https://www.loreal.com/themes/LorealCorp/css/chunk-04eeced9.csswww.loreal.com/themes/LorealCorp/cs... https://www.loreal.com/themes/LorealCorp/css/chunk-04eeced9.css — 200 — 1.5 KiB — 29 ms — h2https://www.loreal.com/themes/LorealCorp/vendors.bundle.js?v=3.34.0-release00000003www.loreal.com/themes/LorealCorp/ve... https://www.loreal.com/themes/LorealCorp/vendors.bundle.js?v=3.34.0-release00000003 — 200 — 169.7 KiB — 39 ms — h2https://www.loreal.com/themes/LorealCorp/bundle.js?v=3.34.0-release00000003www.loreal.com/themes/LorealCorp/bu... https://www.loreal.com/themes/LorealCorp/bundle.js?v=3.34.0-release00000003 — 200 — 72.9 KiB — 36 ms — h2https://ecb.qualquantsignals.com/invite/loreal2021/ecb_intercept.jsecb.qualquantsignals.com/invite/lor... https://ecb.qualquantsignals.com/invite/loreal2021/ecb_intercept.js — 200 — 880 B — 225 ms — h2https://cdn.cookielaw.org/consent/66976695-4e60-4bfb-a909-c0449b1bd801/66976695-4e60-4bfb-a909-c0449b1bd801.jsoncdn.cookielaw.org/consent/66976695-... https://cdn.cookielaw.org/consent/66976695-4e60-4bfb-a909-c0449b1bd801/66976695-4e60-4bfb-a909-c0449b1bd801.json — 200 — 2.7 KiB — 31 ms — h2data:font/woff;base64,d09GRk9UVE8AAAwgAAsAAAAAD8QAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABDRkYgAAAC4AAACN8AA…data:font/woff;base64,d09GRk9UVE8AA... data:font/woff;base64,d09GRk9UVE8AAAwgAAsAAAAAD8QAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABDRkYgAAAC4AAACN8AA… — 200 — 3.0 KiB — 42 ms — datahttps://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Bold.woff2www.loreal.com/themes/LorealCorp/fo... https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Bold.woff2 — 200 — 62.2 KiB — 25 ms — h2https://www.loreal.com/themes/LorealCorp/fonts/Halesworth-Bold.woff2www.loreal.com/themes/LorealCorp/fo... https://www.loreal.com/themes/LorealCorp/fonts/Halesworth-Bold.woff2 — 200 — 36.4 KiB — 26 ms — h2https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Lt.woff2www.loreal.com/themes/LorealCorp/fo... https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Lt.woff2 — 200 — 60.7 KiB — 23 ms — 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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 1208ms · 570KB · €19/mo
Google Tag Manager
Tag Manager
Costly
Execution 306ms
Transfer 168 KB
Unused 39%
Monthly Cost €5/mo
www.loreal.com
Other
Costly
Execution 278ms
Transfer 73 KB
Unused 69%
Monthly Cost €4/mo
www.loreal.com
Other
Costly
Execution 216ms
Transfer 34 KB
Monthly Cost €3/mo
Unattributable
Other
Optional
Execution 162ms
Transfer 0 KB
Monthly Cost €3/mo
OneTrust
Consent
Essential
Execution 109ms
Transfer 124 KB
Unused 53%
Monthly Cost €2/mo
www.loreal.com
Other
Optional
Execution 83ms
Transfer 0 KB
Monthly Cost €1/mo
www.loreal.com
Other
Optional
Execution 53ms
Transfer 170 KB
Unused 56%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 306ms and costs ~€5/month
  • www.loreal.com adds 278ms and costs ~€4/month
  • www.loreal.com adds 216ms and costs ~€3/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

Google Tag Manager takes 306ms 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.loreal.com takes 278ms 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

69% of www.loreal.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

www.loreal.com takes 216ms 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

53% 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

56% of www.loreal.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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