Performance
· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
13.58 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
18.43 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
4.03 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.044
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
13.58 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.
23.61 s
Page Load Progression
DPage Weight BudgetAction2.2 MB transferred, 161 requestsFIX
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
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.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction10487ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://cdn.cookielaw.org/consent/7f944245-c5cd-4eed-a90e-dd955adfdd08/OtAutoBlock.js | 2312ms | 2197ms | 2ms | 3rd |
| Unattributable | 2306ms | 798ms | 0ms | 3rd |
| https://about.gitlab.com/_nuxt/_cY7iC50.js | 1333ms | 343ms | 5ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-NJXWQL | 1138ms | 958ms | 102ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202512.1.0/otBannerSdk.js | 1041ms | 401ms | 91ms | 3rd |
| https://about.gitlab.com/ | 859ms | 94ms | 7ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-EVTFNG2S5Z&cx=c>m=4e64k0h2 | 664ms | 587ms | 66ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-10973987381&cx=c>m=4e64k0h2 | 401ms | 298ms | 100ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-ENFH3X7M5Y&cx=c>m=4e64k0h2 | 374ms | 288ms | 84ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/otSDKStub.js | 57ms | 42ms | 4ms | 3rd |
DJS BundlesAction92 scripts, 461 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://about.gitlab.com/_nuxt/DMvo2hx-.js | 149 KB | 93 KB (64%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-ENFH3X7M5Y&cx=c>m=4e64k0h2 | 164 KB | 66 KB (40%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202512.1.0/otBannerSdk.js | 126 KB | 65 KB (52%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-EVTFNG2S5Z&cx=c>m=4e64k0h2 | 144 KB | 63 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-10973987381&cx=c>m=4e64k0h2 | 140 KB | 59 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-NJXWQL | 185 KB | 58 KB (31%) | ✓ | 3rd |
| https://about.gitlab.com/_nuxt/_cY7iC50.js | 160 KB | 57 KB (36%) | ✓ | 3rd |
| https://about.gitlab.com/_nuxt/y6eHOhjJ.js | 25 KB | — | ✓ | 3rd |
| https://about.gitlab.com/_nuxt/CJRYQQp7.js | 1 KB | — | ✓ | 3rd |
| https://about.gitlab.com/_nuxt/gfz4IEYV.js | 7 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction161 resources · 2.2 MB · 461 KB savings availableFIX
~461.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 161 resources | 2.2 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction14 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
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.
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.
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.
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.
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.
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.
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.
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.
Performance issues directly impact user engagement and conversion rates.
A+Text CompressionAll text resources are compressedPASS
A+Font Loading2 fonts (395 KB)PASS
Web fonts
2
395 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~159 KB and ~318 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints6 hints, 0 missing preconnectsPASS
Current Resource Hints
6 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall161 requests over 3839msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
OneTrust cdn.cookielaw.org | Consent | 2312ms | 3 KB | — | $43/mo | Essential |
Unattributable Unattributable | Other | 2306ms | 0 KB | — | $43/mo | Costly |
about.gitlab.com about.gitlab.com | Other | 1333ms | 160 KB | 36% | $25/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 1138ms | 185 KB | 31% | $21/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 1041ms | 126 KB | 52% | $20/mo | Essential |
about.gitlab.com about.gitlab.com | Other | 859ms | 35 KB | — | $16/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 664ms | 144 KB | 44% | $12/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 401ms | 140 KB | 43% | $8/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 374ms | 164 KB | 40% | $7/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 57ms | 9 KB | — | $1/mo | Essential |
These scripts may cost more than they're worth
- Unattributable adds 2306ms and costs ~$43/month
- about.gitlab.com adds 1333ms and costs ~$25/month
- Google Tag Manager adds 1138ms and costs ~$21/month
- about.gitlab.com adds 859ms and costs ~$16/month
- Google Tag Manager adds 664ms and costs ~$12/month
- Google Tag Manager adds 401ms and costs ~$8/month
- Google Tag Manager adds 374ms and costs ~$7/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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
Unattributable takes 2306ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
about.gitlab.com takes 1333ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 1138ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
52% of OneTrust's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
about.gitlab.com takes 859ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 664ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 401ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 374ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev