Skip to content
https://pawcoach.dog

Performance

· 21 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
96
GRADE
A
FIX
0
REVIEW
2
PASS
17
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
100
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

493 ms

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

694 ms

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

2 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.000

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

592 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

747 ms

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
21
17 PASS 2 REVIEW
B
Main HTML Cache-Control
Cache-Control present but without max-age
REVIEW
Cache-Control present but without max-age
Info::
Main HTML Cache-Control has no max-age: s-maxage=31536000,
Got: s-maxage=31536000,
B
HTTP Caching
s-maxage=31536000,
REVIEW
s-maxage=31536000,
Info::
Cache-Control header is set
Got: s-maxage=31536000,
Info::
CDN TTL: 52 weeks (s-maxage=31536000)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

s-maxage=31536000,

DirectiveValueMeaning
s-maxage31536000CDN caches for 52 weeks
A+
Page Weight Budget
316 KB transferred, 24 requests
PASS
316 KB transferred, 24 requests
Info::
Page weighs 820 KB (316 KB transferred)
Info::
24 HTTP requests
Info::
Estimated 0.06 g CO2 per page load
316 KB / 2.4 MB budget
316 KB transferred
24 requests
0.06 g CO2 per page load
JavaScript 146.8 KiB 46%
Images 65.9 KiB 21%
Fonts 61.6 KiB 19%
HTML 18.9 KiB 6%
Other 10.9 KiB 3%
CSS 10.4 KiB 3%
Other 1.5 KiB 0%
Other 446 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
4% third-party, 0 ms blocking
PASS
4% third-party, 0 ms blocking
Info::
Third-party code accounts for 4% of page weight (11.3 KiB of 316.3 KiB)
Info::
Third-party blocking time is low (0 ms)
96%
First-party Third-party
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
5 images, 0 KB saveable
PASS
5 images, 0 KB saveable
Info::
All images are well-optimized
5 images 66 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
324ms total JS execution
PASS
324ms total JS execution
Info::
https://pawcoach.dog/: 134ms CPU time
Info::
https://pawcoach.dog/_next/static/chunks/ff45a3c1-...: 74ms CPU time
Info::
https://pawcoach.dog/_next/static/chunks/2349-b9c9...: 63ms CPU time
Info::
Unattributable: 53ms CPU time

Main Thread Breakdown

Script Evaluation 38% Style & Layout 26% Other 23% Script Parsing & Compilation 7% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://pawcoach.dog/134ms3ms3ms1st
https://pawcoach.dog/_next/static/chunks/ff45a3c1-cc11eb1428a2dbd4.js74ms58ms7ms1st
https://pawcoach.dog/_next/static/chunks/2349-b9c94a5c00da78de.js63ms52ms9ms1st
Unattributable53ms6ms0ms1st
A+
Font Loading
1 fonts (62 KB)
PASS
1 fonts (62 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

62 KB total

Render-blocking

0

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 493 ms LCP 694 mshttps://pawcoach.dog/_next/static/media/c9cac29382a46c9d-s.p.woff2c9cac29382a46c9d-s.p.woff2 https://pawcoach.dog/_next/static/media/c9cac29382a46c9d-s.p.woff2 — 61.6 KiB — 24 ms — font-display: swap
c9cac29382a46c9d-s.p.woff2 woff2 swap
Size 62 KB
Load time 24 ms
Start 300 ms
Risk FOUT — 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+
JS Bundles
10 scripts, 24 KB unused
PASS
10 scripts, 24 KB unused
Warning::
https://pawcoach.dog/_next/static/chunks/2349-b9c9...: 24 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 24 KB
24 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://pawcoach.dog/_next/static/chunks/2349-b9c94a5c00da78de.js50 KB24 KB (49%)✓1st
https://pawcoach.dog/_next/static/chunks/webpack-d4316b7fd4538f74.js2 KB—✓1st
https://pawcoach.dog/_next/static/chunks/ff45a3c1-cc11eb1428a2dbd4.js52 KB—✓1st
https://pawcoach.dog/_next/static/chunks/main-app-8c06a581b69cd4f2.js1 KB—✓1st
https://pawcoach.dog/_next/static/chunks/app/layout-1b1e0f9918117b3e.js2 KB—✓1st
https://pawcoach.dog/_next/static/chunks/1413-f8e999444c616427.js4 KB—✓1st
https://pawcoach.dog/_next/static/chunks/2202-d4b756f2382221cc.js6 KB—✓1st
https://pawcoach.dog/_next/static/chunks/app/page-c1eb6e20f70436c4.js1 KB—✓1st
https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e178179150949611 KB—✓3rd
https://pawcoach.dog/_next/static/chunks/app/dog-connection-check/page-4ab497d17d5b7ee6.js17 KB—✓1st

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

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+
Compression Algorithm
Main response uses brotli
PASS
Main 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+
Server-Timing Observability
3 Server-Timing entries advertised
PASS
3 Server-Timing entries advertised
Info::
Server-Timing header advertises 3 timing entries
A+
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Info::
`Vary` header declared: RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Router-Segment-Prefetch,...
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::
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+
Page Weight Inventory
24 resources · 316 KB · 24 KB savings available
PASS
24 resources · 316 KB · 24 KB savings available
Info::
Within 1MB page-weight target
Got: 316 KB
Info::
3 third-party resources (4% of weight)
24 resources · 316.3 KiB · 3 third-party Within 1MB page-weight target
JavaScript 46% · 146.8 KiB
Image 21% · 67.4 KiB
Font 19% · 61.6 KiB
Document 6% · 18.9 KiB
Other 4% · 11.4 KiB
CSS 3% · 10.4 KiB

~24.1 KiB of savings available

Remove unused JavaScript: 24.1 KiB
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

Network Waterfall
24 requests over 846ms
INFO
0 ms 200 ms 400 ms 600 ms 800 ms FCP 493 ms LCP 694 mshttps://pawcoach.dog// https://pawcoach.dog/ — 200 — 18.9 KiB — 307 ms — h3https://pawcoach.dog/_next/static/media/c9cac29382a46c9d-s.p.woff2/_next/static/media/c9cac29382a46c9... https://pawcoach.dog/_next/static/media/c9cac29382a46c9d-s.p.woff2 — 200 — 61.6 KiB — 24 ms — h3https://pawcoach.dog/_next/image?url=%2Fcoach%2Ftavi.webp&w=640&q=75/_next/image?url=%2Fcoach%2Ftavi.we... https://pawcoach.dog/_next/image?url=%2Fcoach%2Ftavi.webp&w=640&q=75 — 200 — 36.2 KiB — 229 ms — h3https://pawcoach.dog/_next/static/css/67fc34e3bb8486c8.css/_next/static/css/67fc34e3bb8486c8.... https://pawcoach.dog/_next/static/css/67fc34e3bb8486c8.css — 200 — 10.4 KiB — 21 ms — h3https://pawcoach.dog/_next/static/chunks/webpack-d4316b7fd4538f74.js/_next/static/chunks/webpack-d4316b... https://pawcoach.dog/_next/static/chunks/webpack-d4316b7fd4538f74.js — 200 — 2.2 KiB — 36 ms — h3https://pawcoach.dog/_next/static/chunks/ff45a3c1-cc11eb1428a2dbd4.js/_next/static/chunks/ff45a3c1-cc11e... https://pawcoach.dog/_next/static/chunks/ff45a3c1-cc11eb1428a2dbd4.js — 200 — 52.3 KiB — 45 ms — h3https://pawcoach.dog/_next/static/chunks/2349-b9c94a5c00da78de.js/_next/static/chunks/2349-b9c94a5c0... https://pawcoach.dog/_next/static/chunks/2349-b9c94a5c00da78de.js — 200 — 50.0 KiB — 45 ms — h3https://pawcoach.dog/_next/static/chunks/main-app-8c06a581b69cd4f2.js/_next/static/chunks/main-app-8c06a... https://pawcoach.dog/_next/static/chunks/main-app-8c06a581b69cd4f2.js — 200 — 727 B — 35 ms — h3https://pawcoach.dog/_next/static/chunks/app/layout-1b1e0f9918117b3e.js/_next/static/chunks/app/layout-1b1... https://pawcoach.dog/_next/static/chunks/app/layout-1b1e0f9918117b3e.js — 200 — 1.9 KiB — 43 ms — h3https://pawcoach.dog/_next/static/chunks/1413-f8e999444c616427.js/_next/static/chunks/1413-f8e999444... https://pawcoach.dog/_next/static/chunks/1413-f8e999444c616427.js — 200 — 4.1 KiB — 38 ms — h3https://pawcoach.dog/_next/static/chunks/2202-d4b756f2382221cc.js/_next/static/chunks/2202-d4b756f23... https://pawcoach.dog/_next/static/chunks/2202-d4b756f2382221cc.js — 200 — 5.6 KiB — 32 ms — h3https://pawcoach.dog/_next/static/chunks/app/page-c1eb6e20f70436c4.js/_next/static/chunks/app/page-c1eb6... https://pawcoach.dog/_next/static/chunks/app/page-c1eb6e20f70436c4.js — 200 — 1.5 KiB — 33 ms — h3https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e1781791509496static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e1781791509496 — 200 — 11.3 KiB — 58 ms — h2data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 320 320'%3E…www.w3.org/2000/svg' viewBox='0 0 3... data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 320 320'%3E… — 200 — 0 B — 0 ms — datadata:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 320 160'%3E…www.w3.org/2000/svg' viewBox='0 0 3... data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 320 160'%3E… — 200 — 0 B — 0 ms — datahttps://pawcoach.dog/_next/image?url=%2F_next%2Fstatic%2Fmedia%2Fwork.7e3c3530.jpg&w=640&q=75/_next/image?url=%2F_next%2Fstatic%... https://pawcoach.dog/_next/image?url=%2F_next%2Fstatic%2Fmedia%2Fwork.7e3c3530.jpg&w=640&q=75 — 200 — 27.2 KiB — 210 ms — h3https://pawcoach.dog/_next/image?url=%2F_next%2Fstatic%2Fmedia%2Fmascot-headshot.2f738031.jpg&w=96&q=75/_next/image?url=%2F_next%2Fstatic%... https://pawcoach.dog/_next/image?url=%2F_next%2Fstatic%2Fmedia%2Fmascot-headshot.2f738031.jpg&w=96&q=75 — 200 — 2.4 KiB — 196 ms — h3https://pawcoach.dog/cdn-cgi/rum?/cdn-cgi/rum? https://pawcoach.dog/cdn-cgi/rum? — 204 — 446 B — 9 ms — h3https://pawcoach.dog/api/events/page-view/api/events/page-view https://pawcoach.dog/api/events/page-view — 204 — 461 B — 268 ms — h3https://pawcoach.dog/icon.jpg?d787b0d8913f20a3/icon.jpg?d787b0d8913f20a3 https://pawcoach.dog/icon.jpg?d787b0d8913f20a3 — 200 — 1.5 KiB — 14 ms — h3https://pawcoach.dog/login?_rsc=1ld0r/login?_rsc=1ld0r https://pawcoach.dog/login?_rsc=1ld0r — 200 — 654 B — 231 ms — h3https://pawcoach.dog/checkout?_rsc=1ld0r/checkout?_rsc=1ld0r https://pawcoach.dog/checkout?_rsc=1ld0r — 200 — 659 B — 235 ms — h3https://pawcoach.dog/dog-connection-check?_rsc=1ld0r/dog-connection-check?_rsc=1ld0r https://pawcoach.dog/dog-connection-check?_rsc=1ld0r — 200 — 9.2 KiB — 225 ms — h3https://pawcoach.dog/_next/static/chunks/app/dog-connection-check/page-4ab497d17d5b7ee6.js/_next/static/chunks/app/dog-connec... https://pawcoach.dog/_next/static/chunks/app/dog-connection-check/page-4ab497d17d5b7ee6.js — 200 — 17.2 KiB — 15 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization
6 images, 69 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

6

Total Size

69 KB

3 missing dimensions
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback