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
50 images, 0 KB saveable
REVIEW
50 images, 0 KB saveable
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-ht.project1content.com/Brazz... 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://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://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://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://app-assets.project1content.com/tour/assets... 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://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://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.
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://images-assets.project1content.com/assets/b... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
50images1.9 MB
0oversized-0 KB
50legacy format
20missing 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
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.
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)
KFOMCnqEu92Fr1ME7kSn66a...woff2swap
Size16 KB
Load time16 ms
Start906 ms
RiskFOUT — text flashes from fallback to web font
TK3_WkUHHAIjg75cFRf3bXL...woff2swap
Size12 KB
Load time9 ms
Start907 ms
RiskFOUT — text flashes from fallback to web font
ieVW2ZhZI2eCN5jzbjEETS9...woff2swap
Size17 KB
Load time16 ms
Start907 ms
RiskFOUT — text flashes from fallback to web font
ieVo2ZhZI2eCN5jzbjEETS9...woff2swap
Size15 KB
Load time11 ms
Start907 ms
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.
Network Waterfall
122 requests over 4430ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
82%of JavaScript execution is third-party
First-party Third-party4567ms · 2636KB · €50/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
app-assets.project1content.com
app-assets.project1content.com
Other
1742ms
707 KB
56%
€19/mo
Costly
www.brazzers.com
www.brazzers.com
Other
1114ms
308 KB
—
€12/mo
Costly
app-assets.project1content.com
app-assets.project1content.com
Other
942ms
134 KB
51%
€10/mo
Costly
onelist.project1content.com
onelist.project1content.com
Other
222ms
384 KB
66%
€2/mo
Costly
app-assets.project1content.com
app-assets.project1content.com
Other
209ms
892 KB
52%
€2/mo
Costly
onenavigation.project1content.com
onenavigation.project1content.com
Other
184ms
195 KB
48%
€2/mo
Optional
www.brazzers.com
www.brazzers.com
Other
155ms
15 KB
—
€2/mo
Optional
app-assets.project1content.com
Other
Costly
Execution1742ms
Transfer707 KB
Unused56%
Monthly Cost€19/mo
www.brazzers.com
Other
Costly
Execution1114ms
Transfer308 KB
Monthly Cost€12/mo
app-assets.project1content.com
Other
Costly
Execution942ms
Transfer134 KB
Unused51%
Monthly Cost€10/mo
onelist.project1content.com
Other
Costly
Execution222ms
Transfer384 KB
Unused66%
Monthly Cost€2/mo
app-assets.project1content.com
Other
Costly
Execution209ms
Transfer892 KB
Unused52%
Monthly Cost€2/mo
onenavigation.project1content.com
Other
Optional
Execution184ms
Transfer195 KB
Unused48%
Monthly Cost€2/mo
www.brazzers.com
Other
Optional
Execution155ms
Transfer15 KB
Monthly Cost€2/mo
These scripts may cost more than they're worth
app-assets.project1content.com adds 1742ms and costs ~€19/month
www.brazzers.com adds 1114ms and costs ~€12/month
app-assets.project1content.com adds 942ms and costs ~€10/month
onelist.project1content.com adds 222ms and costs ~€2/month
app-assets.project1content.com adds 209ms and costs ~€2/month
82% 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 1742ms 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
www.brazzers.com takes 1114ms 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
app-assets.project1content.com takes 942ms 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
onelist.project1content.com takes 222ms 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 209ms 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.