JavaScript is 1.4 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.4 MB
Warning::
!
111 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
i
Estimated 0.38 g CO2 per page load
1.8 MBtransferred
111 requests
0.38 g CO2 per page load
JavaScript1.4 MiB75%
Images239.1 KiB13%
Fonts119.0 KiB6%
HTML42.1 KiB2%
Other24.3 KiB1%
Other16.1 KiB1%
CSS13.2 KiB1%
Other11.2 KiB1%
Other696 B0%
02.4 MB4.9 MB
Approaching limit
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
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Why this matters
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
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
Main HTML max-age=600 (~10min)
REVIEW
Main HTML max-age=600 (~10min)
Info::
i
Main HTML cached for 10 minutes -- mild staleness risk
Got: max-age=600, must-revalidate
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::
!
1 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 4.5 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
Image Optimization
21 images, 0 KB saveable
PASS
21 images, 0 KB saveable
Info::
✓
All images are well-optimized
21images239 KB
0oversized-0 KB
3legacy format
0missing dimensionsCLS risk
A+
Font Loading
7 fonts (119 KB)
PASS
7 fonts (119 KB)
Info::
i
7 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
7
119 KB total
Render-blocking
0
of 7
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
manrope-v20-latin-regul...woff2swap
Size14 KB
Load time29 ms
Start113 ms
RiskFOUT — text flashes from fallback to web font
josefin-sans-v34-latin-...woff2swap
Size12 KB
Load time30 ms
Start114 ms
RiskFOUT — text flashes from fallback to web font
josefin-sans-v34-latin-...woff2swap
Size12 KB
Load time31 ms
Start114 ms
RiskFOUT — text flashes from fallback to web font
inter-v20-latin-regular...woff2swap
Size23 KB
Load time44 ms
Start115 ms
RiskFOUT — text flashes from fallback to web font
font-woff;charset=utf-8...woffswap
Size2 KB
Load time36 ms
Start176 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
manrope-v20-latin-700.w...woff2swap
Size14 KB
Load time33 ms
Start215 ms
RiskFOUT — text flashes from fallback to web font
memvYaGs126MiZpBA-UvWbX...woff2swap
Size42 KB
Load time146 ms
Start1.3 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
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
A
HTTP Caching
max-age=600 (10 minutes)
PASS
max-age=600 (10 minutes)
Info::
✓
Cache-Control header is set
Got: max-age=600, must-revalidate
Info::
✓
Effective TTL: 10 minutes (max-age=600)
Info::
i
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
max-age=600, must-revalidate
Directive
Value
Meaning
max-age
600
Cache for 10 minutes
must-revalidate
—
Must recheck with server after expiry
Effective TTL: 600 seconds
Network Waterfall
111 requests over 1508ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
62%of JavaScript execution is third-party
First-party Third-party2764ms · 1081KB · $37/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
cdn.browsiprod.com
cdn.browsiprod.com
Other
746ms
104 KB
64%
$10/mo
Costly
cdn.confiant-integrations.net
cdn.confiant-integrations.net
Other
389ms
142 KB
59%
$5/mo
Costly
fundingchoicesmessages.google.com
fundingchoicesmessages.google.com
Other
369ms
74 KB
—
$5/mo
Costly
fundingchoicesmessages.google.com
fundingchoicesmessages.google.com
Other
254ms
70 KB
50%
$3/mo
Costly
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
201ms
201 KB
73%
$3/mo
Costly
d15kdpgjg3unno.cloudfront.net
d15kdpgjg3unno.cloudfront.net
Other
183ms
75 KB
51%
$2/mo
Optional
s.skimresources.com
s.skimresources.com
Other
173ms
22 KB
—
$2/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
166ms
166 KB
37%
$2/mo
Optional
cdn.tpdads.com
cdn.tpdads.com
Other
147ms
176 KB
73%
$2/mo
Optional
aacdn.nagich.com
aacdn.nagich.com
Other
71ms
14 KB
—
$1/mo
Optional
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
67ms
37 KB
—
$1/mo
Optional
cdn.browsiprod.com
Other
Costly
Execution746ms
Transfer104 KB
Unused64%
Monthly Cost$10/mo
cdn.confiant-integrations.net
Other
Costly
Execution389ms
Transfer142 KB
Unused59%
Monthly Cost$5/mo
fundingchoicesmessages.google.com
Other
Costly
Execution369ms
Transfer74 KB
Monthly Cost$5/mo
fundingchoicesmessages.google.com
Other
Costly
Execution254ms
Transfer70 KB
Unused50%
Monthly Cost$3/mo
securepubads.g.doubleclick.net
Other
Costly
Execution201ms
Transfer201 KB
Unused73%
Monthly Cost$3/mo
d15kdpgjg3unno.cloudfront.net
Other
Optional
Execution183ms
Transfer75 KB
Unused51%
Monthly Cost$2/mo
s.skimresources.com
Other
Optional
Execution173ms
Transfer22 KB
Monthly Cost$2/mo
Google Tag Manager
Tag Manager
Optional
Execution166ms
Transfer166 KB
Unused37%
Monthly Cost$2/mo
cdn.tpdads.com
Other
Optional
Execution147ms
Transfer176 KB
Unused73%
Monthly Cost$2/mo
aacdn.nagich.com
Other
Optional
Execution71ms
Transfer14 KB
Monthly Cost$1/mo
securepubads.g.doubleclick.net
Other
Optional
Execution67ms
Transfer37 KB
Monthly Cost$1/mo
These scripts may cost more than they're worth
cdn.browsiprod.com adds 746ms and costs ~$10/month
cdn.confiant-integrations.net adds 389ms and costs ~$5/month
fundingchoicesmessages.google.com adds 369ms and costs ~$5/month
fundingchoicesmessages.google.com adds 254ms and costs ~$3/month
securepubads.g.doubleclick.net adds 201ms and costs ~$3/month
62% of JavaScript execution time comes from third-party scripts.
Why this matters
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
cdn.browsiprod.com takes 746ms 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
64% of cdn.browsiprod.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
cdn.confiant-integrations.net takes 389ms 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
59% of cdn.confiant-integrations.net'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
fundingchoicesmessages.google.com takes 369ms 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
fundingchoicesmessages.google.com takes 254ms 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
50% of fundingchoicesmessages.google.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
securepubads.g.doubleclick.net takes 201ms 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
73% of securepubads.g.doubleclick.net'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
51% of d15kdpgjg3unno.cloudfront.net'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
73% of cdn.tpdads.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.