Intentional for dynamic content, but increases server load for every page view.
Got: no-store
Info::
i
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
no-store
Directive
Value
Meaning
no-store
—
Never cache this response
B
Image Optimization
18 images, 0 KB saveable
REVIEW
18 images, 0 KB saveable
Warning::
!
https://fe47aae2f66dc6e3a9c5dbbdedc26bfc.cdn.bubbl... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
18images862 KB
0oversized-0 KB
3legacy format
1missing 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
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::
!
5 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 6.5 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.
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
12 fonts (328 KB)
PASS
12 fonts (328 KB)
Info::
i
12 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
12
328 KB total
Render-blocking
0
of 12
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
7cHpv4kjgoGqM7E_DMs5yng...woff2swap
Size15 KB
Load time165 ms
Start529 ms
RiskFOUT — text flashes from fallback to web font
7cHqv4kjgoGqM7E3_-gs51o...woff2swap
Size15 KB
Load time158 ms
Start529 ms
RiskFOUT — text flashes from fallback to web font
7cHqv4kjgoGqM7E30-8s51o...woff2swap
Size15 KB
Load time121 ms
Start529 ms
RiskFOUT — text flashes from fallback to web font
7cHqv4kjgoGqM7E3q-0s51o...woff2swap
Size15 KB
Load time109 ms
Start529 ms
RiskFOUT — text flashes from fallback to web font
S6uyw4BMUTPHjx4wXiWtFCc...woff2swap
Size14 KB
Load time150 ms
Start529 ms
RiskFOUT — text flashes from fallback to web font
S6u9w4BMUTPHh50XSwiPGQ3...woff2swap
Size13 KB
Load time130 ms
Start530 ms
RiskFOUT — text flashes from fallback to web font
Iura6YBj_oCad4k1nzGBC5x...woff2swap
Size10 KB
Load time138 ms
Start530 ms
RiskFOUT — text flashes from fallback to web font
Iurf6YBj_oCad4k1l8KiHrF...woff2swap
Size10 KB
Load time166 ms
Start530 ms
RiskFOUT — text flashes from fallback to web font
fontawesome-webfont.woff2woff2swap
Size76 KB
Load time48 ms
Start1.4 s
RiskFOUT — text flashes from fallback to web font
Iurf6YBj_oCad4k1l8KiHrR...woff2swap
Size9 KB
Load time38 ms
Start1.4 s
RiskFOUT — text flashes from fallback to web font
MaterialIcons-Regular.w...woff2swap
Size126 KB
Load time45 ms
Start1.4 s
RiskFOUT — text flashes from fallback to web font
Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
Iura6YBj_oCad4k1nzSBC5x...woff2swap
Size9 KB
Load time36 ms
Start1.8 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)
Fixing the unchecked items could save ~63 KB and ~126 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+
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+
Document Compression
Document response uses brotli
PASS
Document response uses brotli
Info::
✓
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
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+
Main HTML Cache-Control
Main HTML uses no-store -- correct for sensitive/dynamic content
PASS
Main HTML uses no-store -- correct for sensitive/dynamic content
Info::
✓
Main HTML uses no-store -- correct for sensitive/dynamic content
Got: no-store
A+
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Info::
✓
`Vary` header declared: Accept-Encoding
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
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
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
Asset Compression
No text asset hosts to measure
INFO
No text asset hosts to measure
Info::
i
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall
63 requests over 4848ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
8%of JavaScript execution is third-party
First-party Third-party509ms · 168KB · $7/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
Google Tag Manager
www.googletagmanager.com
Tag Manager
509ms
168 KB
43%
$7/mo
Costly
Google Tag Manager
Tag Manager
Costly
Execution509ms
Transfer168 KB
Unused43%
Monthly Cost$7/mo
These scripts may cost more than they're worth
Google Tag Manager adds 509ms and costs ~$7/month
Google Tag Manager takes 509ms 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.