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
46 images, 0 KB saveable
REVIEW
46 images, 0 KB saveable
Warning::
!
https://static-landing-assets.project1content.com/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images-assets.project1content.com/assets/b... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images-assets.project1content.com/assets/b... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://media-public-ht.project1content.com/m=eeEa... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images-assets.project1content.com/assets/b... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://app-assets.project1content.com/tour/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images-assets.project1content.com/assets/b... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images-assets-ht.project1content.com/Brazz... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://app-assets.project1content.com/tour/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images-assets-ht.project1content.com/Commo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://media-public-ht.project1content.com/m=eeEa... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images-assets.project1content.com/assets/b... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://media-public-ht.project1content.com/m=eeEa... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://static-landing-assets.project1content.com/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://images-assets.project1content.com/assets/b... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://media-public-ht.project1content.com/m=eeEa... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
46images1.3 MB
0oversized-0 KB
46legacy format
16missing dimensionsCLS 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
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
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
Compression Algorithm
Action
Main response served uncompressed
REVIEW
Main response served uncompressed
Info::
i
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
i
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
i
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
B
JavaScript Blocking
2 JS blocking issue(s) detected
REVIEW
2 JS blocking issue(s) detected
Warning::
!
2 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
Warning::
!
Total JS execution time is 20.1 s -- over the 3.5s budget
Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.
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
4 fonts (60 KB)
PASS
4 fonts (60 KB)
Info::
i
4 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
4
60 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
TK3_WkUHHAIjg75cFRf3bXL...woff2swap
Size12 KB
Load time24 ms
Start1.0 s
RiskFOUT — text flashes from fallback to web font
ieVW2ZhZI2eCN5jzbjEETS9...woff2swap
Size17 KB
Load time34 ms
Start1.0 s
RiskFOUT — text flashes from fallback to web font
KFOMCnqEu92Fr1ME7kSn66a...woff2swap
Size16 KB
Load time9 ms
Start1.0 s
RiskFOUT — text flashes from fallback to web font
ieVo2ZhZI2eCN5jzbjEETS9...woff2swap
Size15 KB
Load time36 ms
Start1.0 s
RiskFOUT — 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
No optimization needed
PASS
No optimization needed
Info::
✓
No resource hint issues
A+
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
PASS
HTTP/3 advertised via Alt-Svc
Info::
✓
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
✓
LCP image preload audit not available for this scan
A+
Server Response Intelligence
1 server-response signal(s) detected
PASS
1 server-response signal(s) detected
Info::
i
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
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+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
✓
No CSS performance depth issues detected
Network Waterfall
118 requests over 4521ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
87%of JavaScript execution is third-party
First-party Third-party17402ms · 2655KB · €189/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
app-assets.project1content.com
app-assets.project1content.com
Other
7310ms
707 KB
56%
€79/mo
Costly
app-assets.project1content.com
app-assets.project1content.com
Other
3386ms
134 KB
51%
€37/mo
Costly
www.brazzers.com
www.brazzers.com
Other
3311ms
317 KB
—
€36/mo
Costly
onelist.project1content.com
onelist.project1content.com
Other
1277ms
384 KB
66%
€14/mo
Costly
app-assets.project1content.com
app-assets.project1content.com
Other
939ms
892 KB
52%
€10/mo
Costly
onenavigation.project1content.com
onenavigation.project1content.com
Other
635ms
195 KB
48%
€7/mo
Costly
www.brazzers.com
www.brazzers.com
Other
419ms
15 KB
—
€5/mo
Costly
www.brazzers.com
www.brazzers.com
Other
127ms
10 KB
—
€1/mo
Optional
app-assets.project1content.com
Other
Costly
Execution7310ms
Transfer707 KB
Unused56%
Monthly Cost€79/mo
app-assets.project1content.com
Other
Costly
Execution3386ms
Transfer134 KB
Unused51%
Monthly Cost€37/mo
www.brazzers.com
Other
Costly
Execution3311ms
Transfer317 KB
Monthly Cost€36/mo
onelist.project1content.com
Other
Costly
Execution1277ms
Transfer384 KB
Unused66%
Monthly Cost€14/mo
app-assets.project1content.com
Other
Costly
Execution939ms
Transfer892 KB
Unused52%
Monthly Cost€10/mo
onenavigation.project1content.com
Other
Costly
Execution635ms
Transfer195 KB
Unused48%
Monthly Cost€7/mo
www.brazzers.com
Other
Costly
Execution419ms
Transfer15 KB
Monthly Cost€5/mo
www.brazzers.com
Other
Optional
Execution127ms
Transfer10 KB
Monthly Cost€1/mo
These scripts may cost more than they're worth
app-assets.project1content.com adds 7310ms and costs ~€79/month
app-assets.project1content.com adds 3386ms and costs ~€37/month
www.brazzers.com adds 3311ms and costs ~€36/month
onelist.project1content.com adds 1277ms and costs ~€14/month
app-assets.project1content.com adds 939ms and costs ~€10/month
onenavigation.project1content.com adds 635ms and costs ~€7/month
www.brazzers.com adds 419ms and costs ~€5/month
87% 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
app-assets.project1content.com takes 7310ms 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
56% of app-assets.project1content.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
app-assets.project1content.com takes 3386ms 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
51% of app-assets.project1content.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.brazzers.com takes 3311ms 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
onelist.project1content.com takes 1277ms 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
66% of onelist.project1content.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
app-assets.project1content.com takes 939ms 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 app-assets.project1content.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
onenavigation.project1content.com takes 635ms 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.brazzers.com takes 419ms 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.