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https://loreal.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
83
GRADE
B
FIX
3
REVIEW
3
PASS
9
INFO
2

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

Mobile Desktop
44
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.

2.49 s

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

7.42 s

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

1.51 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.

4.46 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.

9.44 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
9 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 (1.1 MiB of 1.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
4347ms total JS execution
FIX
4347ms total JS execution
Warning::
https://www.loreal.com/themes/LorealCorp/bundle.js...: 1067ms CPU time
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-5WD...: 1050ms CPU time
Warning::
Unattributable: 608ms CPU time
Warning::
https://www.loreal.com/en/: 531ms CPU time
Warning::
https://www.loreal.com/cdn-cgi/challenge-platform/...: 368ms CPU time
Warning::
Third-party scripts: 4347ms (100% of total)

Main Thread Breakdown

Script Evaluation 59% Other 17% Style & Layout 9% Script Parsing & Compilation 6% Parse HTML & CSS 5%
ScriptTotalScriptingParse/CompileParty
https://www.loreal.com/themes/LorealCorp/bundle.js?v=3.34.0-release000000031067ms716ms32ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-5WD4R51050ms917ms70ms3rd
Unattributable608ms111ms0ms3rd
https://www.loreal.com/en/531ms94ms5ms3rd
https://www.loreal.com/cdn-cgi/challenge-platform/scripts/jsd/main.js368ms350ms3ms3rd
https://cdn.cookielaw.org/scripttemplates/202511.1.0/otBannerSdk.js358ms211ms96ms3rd
https://www.loreal.com/themes/LorealCorp/vendors.bundle.js?v=3.34.0-release00000003183ms12ms47ms3rd
https://www.loreal.com/themes/LorealCorp/country-selector.js100ms99ms0ms3rd
https://www.loreal.com/themes/LorealCorp/modal.js82ms60ms0ms3rd
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.

B
Page Weight Budget
1.1 MB transferred, 40 requests
REVIEW
1.1 MB transferred, 40 requests
Info::
Page weighs 2.8 MB (1.1 MB transferred)
Warning::
JavaScript is 561 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 561 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::
40 HTTP requests
Info::
Estimated 0.22 g CO2 per page load
1.1 MB / 2.4 MB budget
1.1 MB transferred
40 requests
0.22 g CO2 per page load
JavaScript 560.8 KiB 51%
Fonts 258.7 KiB 24%
Images 148.9 KiB 14%
CSS 40.6 KiB 4%
Other 37.4 KiB 3%
HTML 34.6 KiB 3%
Other 3.9 KiB 0%
Other 3.7 KiB 0%
Other 915 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

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 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...: 51 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 KB51 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?13 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

B
Page Weight Inventory
40 resources · 1.1 MB · 276 KB savings available
REVIEW
40 resources · 1.1 MB · 276 KB savings available
Warning::
Page weight 66 KB over 1MB target
Got: 1.1 MB Expected: ≤ 1 MB
Info::
~276 KB of savings available
Warning::
39 third-party resources (100% of weight)
40 resources · 1.1 MiB · 39 third-party 65.6 KiB over 1MB target
JavaScript 51% · 560.8 KiB
Font 24% · 258.7 KiB
Image 14% · 152.0 KiB
CSS 4% · 45.2 KiB
Other 3% · 37.6 KiB
Document 3% · 35.2 KiB

~276.3 KiB of savings available

Remove unused JavaScript: 276.3 KiB
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
7 images, 0 KB saveable
PASS
7 images, 0 KB saveable
Info::
All images are well-optimized
7 images 149 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 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s FCP 2.5 s LCP 7.4 shttps://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Bold.woff2HelveticaNowDisplayW05-... https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Bold.woff2 — 62.2 KiB — 31 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 — 32 ms — font-display: swaphttps://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Lt.woff2HelveticaNowDisplayW05-... https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Lt.woff2 — 60.6 KiB — 33 ms — font-display: swapdata:font/woff;base64,d09GRk9UVE8AAAwgAAsAAAAAD8QAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABDRkYgAAAC4AAACN8AA…woff;base64,d09GRk9UVE8... data:font/woff;base64,d09GRk9UVE8AAAwgAAsAAAAAD8QAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABDRkYgAAAC4AAACN8AA… — 3.0 KiB — 9 ms — font-display: swaphttps://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Rg.woff2HelveticaNowDisplayW05-... https://www.loreal.com/themes/LorealCorp/fonts/HelveticaNowDisplayW05-Rg.woff2 — 57.3 KiB — 34 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 — 39.2 KiB — 34 ms — font-display: swap
HelveticaNowDisplayW05-... woff2 swap
Size 62 KB
Load time 31 ms
Start 604 ms
Risk FOUT — text flashes from fallback to web font
Halesworth-Bold.woff2 woff2 swap
Size 36 KB
Load time 32 ms
Start 604 ms
Risk FOUT — text flashes from fallback to web font
HelveticaNowDisplayW05-... woff2 swap
Size 61 KB
Load time 33 ms
Start 604 ms
Risk FOUT — text flashes from fallback to web font
woff;base64,d09GRk9UVE8... woff swap
Size 3 KB
Load time 9 ms
Start 679 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
HelveticaNowDisplayW05-... woff2 swap
Size 57 KB
Load time 34 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
Halesworth-Medium.woff2 woff2 swap
Size 39 KB
Load time 34 ms
Start 1.0 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)

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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
—
preload
2
dns-prefetch
—
prefetch
—

2 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
40 requests over 1408ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s FCP 2.5 s LCP 7.4 shttps://loreal.com// https://loreal.com/ — 301 — 334 B — 27 ms — h2https://www.loreal.com/www.loreal.com/ https://www.loreal.com/ — 301 — 560 B — 342 ms — h2https://www.loreal.com/en/www.loreal.com/en/ https://www.loreal.com/en/ — 200 — 34.6 KiB — 295 ms — h2https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 27 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 — 39.1 KiB — 23 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 — 22 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 — 30 ms — h2https://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 — 31 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 — 32 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 — 60.6 KiB — 33 ms — h2https://www.loreal.com/themes/LorealCorp/manifest.jsonwww.loreal.com/themes/LorealCorp/ma... https://www.loreal.com/themes/LorealCorp/manifest.json — 200 — 915 B — 326 ms — h2https://geolocation.onetrust.com/cookieconsentpub/v1/geo/locationgeolocation.onetrust.com/cookiecons... https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location — 200 — 286 B — 47 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 — 22 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 — 218 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 — 169.6 KiB — 30 ms — h2data:font/woff;base64,d09GRk9UVE8AAAwgAAsAAAAAD8QAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABDRkYgAAAC4AAACN8AA…data:font/woff;base64,d09GRk9UVE8AA... data:font/woff;base64,d09GRk9UVE8AAAwgAAsAAAAAD8QAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABDRkYgAAAC4AAACN8AA… — 200 — 3.0 KiB — 9 ms — datahttps://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://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 — 22 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 — 18 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-mob.jpg?rev=e3bd9a6092f640068bafb304bd7cf2c3&cx=0.5&cy=0.22&cw=430&ch=592&blr=False&hash=C41129867301AB4501806F65CB800EBAwww.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-mob.jpg?rev=e3bd9a6092f640068bafb304bd7cf2c3&cx=0.5&cy=0.22&cw=430&ch=592&blr=False&hash=C41129867301AB4501806F65CB800EBA — 200 — 37.9 KiB — 17 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/essentiality-of-beauty/2025/kv-eob-hero-banner-mob.jpg?rev=7effa368d0fb4514ad00c1cc1575be47&cx=0&cy=0&cw=430&ch=592&blr=False&hash=BF42E740E8103846C6A28C9AE4C74C4Dwww.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-mob.jpg?rev=7effa368d0fb4514ad00c1cc1575be47&cx=0&cy=0&cw=430&ch=592&blr=False&hash=BF42E740E8103846C6A28C9AE4C74C4D — 200 — 22.3 KiB — 19 ms — h2https://www.loreal.com/-/media/project/loreal/brand-sites/corp/master/lcorp/1-home/2026/rif/2025-annual-results-l-oreal-groupe-mob.jpg?rev=cfb71b476a58432ab457ce48ff21e8f5&cx=0&cy=0&cw=430&ch=592&blr=False&hash=9A34D04BFE49A4215BA1EA179D378E12www.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-mob.jpg?rev=cfb71b476a58432ab457ce48ff21e8f5&cx=0&cy=0&cw=430&ch=592&blr=False&hash=9A34D04BFE49A4215BA1EA179D378E12 — 200 — 56.5 KiB — 25 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-mob.jpg?rev=ca071b792f344902955299e4f129e05a&cx=0&cy=0&cw=430&ch=592&blr=False&hash=88419A3ECCE3D61EBC7B01D528796597www.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-mob.jpg?rev=ca071b792f344902955299e4f129e05a&cx=0&cy=0&cw=430&ch=592&blr=False&hash=88419A3ECCE3D61EBC7B01D528796597 — 200 — 3.6 KiB — 20 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 — 57.3 KiB — 34 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 — 39.2 KiB — 34 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 — 758 B — 24 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 — 377 B — 29 ms — h2https://cdn.cookielaw.org/scripttemplates/202511.1.0/assets/otCenterRounded.jsoncdn.cookielaw.org/scripttemplates/2... https://cdn.cookielaw.org/scripttemplates/202511.1.0/assets/otCenterRounded.json — 200 — 2.9 KiB — 15 ms — h2
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s FCP 2.5 s LCP 7.4 shttps://loreal.com// https://loreal.com/ — 301 — 334 B — 27 ms — h2https://www.loreal.com/www.loreal.com/ https://www.loreal.com/ — 301 — 560 B — 342 ms — h2https://www.loreal.com/en/www.loreal.com/en/ https://www.loreal.com/en/ — 200 — 34.6 KiB — 295 ms — h2https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 27 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 — 39.1 KiB — 23 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 — 22 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 4347ms · 571KB · €70/mo
www.loreal.com
Other
Costly
Execution 1067ms
Transfer 73 KB
Unused 69%
Monthly Cost €17/mo
Google Tag Manager
Tag Manager
Costly
Execution 1050ms
Transfer 168 KB
Unused 39%
Monthly Cost €17/mo
Unattributable
Other
Costly
Execution 608ms
Transfer 0 KB
Monthly Cost €10/mo
www.loreal.com
Other
Costly
Execution 531ms
Transfer 35 KB
Monthly Cost €8/mo
www.loreal.com
Other
Costly
Execution 368ms
Transfer 0 KB
Monthly Cost €6/mo
OneTrust
Consent
Essential
Execution 358ms
Transfer 124 KB
Unused 53%
Monthly Cost €6/mo
www.loreal.com
Other
Optional
Execution 183ms
Transfer 170 KB
Unused 56%
Monthly Cost €3/mo
www.loreal.com
Other
Optional
Execution 100ms
Transfer 1 KB
Monthly Cost €2/mo
www.loreal.com
Other
Optional
Execution 82ms
Transfer 0 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.loreal.com adds 1067ms and costs ~€17/month
  • Google Tag Manager adds 1050ms and costs ~€17/month
  • Unattributable adds 608ms and costs ~€10/month
  • www.loreal.com adds 531ms and costs ~€8/month
  • www.loreal.com adds 368ms and costs ~€6/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.loreal.com takes 1067ms 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

Google Tag Manager takes 1050ms 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 608ms 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 531ms 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 368ms 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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