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Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
96
GRADE
A
FIX
0
REVIEW
4
PASS
19
INFO
3

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

Mobile Desktop
90
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.
96
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.

1.54 s

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

3.56 s

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

0 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.

1.54 s

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

3.57 s

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
26
19 PASS 4 REVIEW
B
JS Execution Cost
779ms total JS execution
REVIEW
779ms total JS execution
Warning::
https://clinicsofnorthtexas.com/?utm_source=google...: 596ms CPU time
Info::
Unattributable: 183ms CPU time

Main Thread Breakdown

Style & Layout 36% Other 27% Script Evaluation 18% Parse HTML & CSS 12% Rendering 5%
ScriptTotalScriptingParse/CompileParty
https://clinicsofnorthtexas.com/?utm_source=google&utm_medium=organic&utm_campaign=gbp596ms115ms11ms1st
Unattributable183ms6ms0ms1st
C
Main HTML Cache-Control
Action
Main HTML max-age=2678400 (~44640min) is aggressive
REVIEW
Main HTML max-age=2678400 (~44640min) is aggressive
Warning::
Main HTML cached for 44640 minutes -- risks stale auth / SPA state
Long max-age on the main HTML document means users may see outdated auth state, SPA shells, or A/B variants until the cache expires. Consider Cache-Control: no-cache (or max-age=300) for HTML and let your hashed assets (JS/CSS/images) carry the long cache instead.
Got: public, max-age=2678400
B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
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+
Page Weight Budget
622 KB transferred, 17 requests
PASS
622 KB transferred, 17 requests
Info::
Page weighs 984 KB (622 KB transferred)
Info::
17 HTTP requests
Info::
Estimated 0.13 g CO2 per page load
622 KB / 2.4 MB budget
622 KB transferred
17 requests
0.13 g CO2 per page load
Images 398.2 KiB 64%
Fonts 159.6 KiB 26%
HTML 60.0 KiB 10%
JavaScript 3.3 KiB 1%
Other 1.0 KiB 0%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
11% third-party, 0 ms blocking
PASS
11% third-party, 0 ms blocking
Info::
Third-party code accounts for 11% of page weight (69.5 KiB of 622.2 KiB)
Info::
Third-party blocking time is low (0 ms)
89%
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
10 images, 0 KB saveable
PASS
10 images, 0 KB saveable
Info::
All images are well-optimized
10 images 398 KB
0 oversized -0 KB
3 legacy format
0 missing dimensions CLS risk
A+
Font Loading
4 fonts (160 KB)
PASS
4 fonts (160 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

160 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s FCP 1.5 s LCP 3.6 shttps://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7.woff2UcC73FwrK3iLTeHuS_nVMrM... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7.woff2 — 47.2 KiB — 93 ms — font-display: swaphttps://clinicsofnorthtexas.com/wp-content/plugins/bb-plugin/fonts/fontawesome/5.15.4/webfonts/fa-regular-400.woff2fa-regular-400.woff2 https://clinicsofnorthtexas.com/wp-content/plugins/bb-plugin/fonts/fontawesome/5.15.4/webfonts/fa-regular-400.woff2 — 13.2 KiB — 42 ms — font-display: swaphttps://fonts.gstatic.com/s/cormorantgaramond/v21/co3umX5slCNuHLi8bLeY9MK7whWMhyjypVO7abI26QOD_v86KnTOig.woff2co3umX5slCNuHLi8bLeY9MK... https://fonts.gstatic.com/s/cormorantgaramond/v21/co3umX5slCNuHLi8bLeY9MK7whWMhyjypVO7abI26QOD_v86KnTOig.woff2 — 22.4 KiB — 85 ms — font-display: swaphttps://clinicsofnorthtexas.com/wp-content/plugins/bb-plugin/fonts/fontawesome/5.15.4/webfonts/fa-solid-900.woff2fa-solid-900.woff2 https://clinicsofnorthtexas.com/wp-content/plugins/bb-plugin/fonts/fontawesome/5.15.4/webfonts/fa-solid-900.woff2 — 76.9 KiB — 41 ms — font-display: swap
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 93 ms
Start 59 ms
Risk FOUT — text flashes from fallback to web font
fa-regular-400.woff2 woff2 swap
Size 13 KB
Load time 42 ms
Start 59 ms
Risk FOUT — text flashes from fallback to web font
co3umX5slCNuHLi8bLeY9MK... woff2 swap
Size 22 KB
Load time 85 ms
Start 60 ms
Risk FOUT — text flashes from fallback to web font
fa-solid-900.woff2 woff2 swap
Size 77 KB
Load time 41 ms
Start 161 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
1 scripts, 0 KB unused
PASS
1 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://clinicsofnorthtexas.com/wp-content/plugins/wp-rocket/assets/js/lazyload/17.8.3/lazyload.min.js3 KB—✓1st
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
7 hints, 0 missing preconnects
PASS
7 hints, 0 missing preconnects
Info::
Page uses 7 resource hint(s)

Current Resource Hints

preconnect
1
preload
4
dns-prefetch
2
prefetch
—

7 resource hints configured

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 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::
`Last-Modified` present -- timestamp-based conditional GET supported
Consider also setting `ETag` for stronger revalidation -- ETags are content hashes that don't suffer from clock-skew or DST issues. Last-Modified alone is functional for conditional GETs and not a bug.
A+
Page Weight Inventory
17 resources · 622 KB · 0 KB savings available
PASS
17 resources · 622 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 622 KB
Info::
7 third-party resources (11% of weight)
17 resources · 622.2 KiB · 7 third-party Within 1MB page-weight target
Image 64% · 399.2 KiB
Font 26% · 159.6 KiB
Document 10% · 60.0 KiB
JavaScript 1% · 3.3 KiB
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+
JavaScript Blocking
No render-blocking JS or document.write usage detected
PASS
No render-blocking JS or document.write usage detected
Info::
No JavaScript blocking issues 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+
HTTP Caching
max-age=2678400 (4 weeks)
PASS
max-age=2678400 (4 weeks)
Info::
Cache-Control header is set
Got: public, max-age=2678400
Info::
Effective TTL: 4 weeks (max-age=2678400)
Info::
Last-Modified header present
Cache-Control

public, max-age=2678400

DirectiveValueMeaning
public—Any cache may store this response
max-age2678400Cache for 4 weeks
Effective TTL: 2678400 seconds
Network Waterfall
17 requests over 1205ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 1.5 s LCP 3.6 shttps://clinicsofnorthtexas.com/?utm_source=google&utm_medium=organic&utm_campaign=gbp/?utm_source=google&utm_medium=orga... https://clinicsofnorthtexas.com/?utm_source=google&utm_medium=organic&utm_campaign=gbp — 200 — 60.0 KiB — 41 ms — h2https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7.woff2fonts.gstatic.com/s/inter/v20/UcC73... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7.woff2 — 200 — 47.2 KiB — 93 ms — h3https://clinicsofnorthtexas.com/wp-content/plugins/bb-plugin/fonts/fontawesome/5.15.4/webfonts/fa-regular-400.woff2/wp-content/plugins/bb-plugin/fonts... https://clinicsofnorthtexas.com/wp-content/plugins/bb-plugin/fonts/fontawesome/5.15.4/webfonts/fa-regular-400.woff2 — 200 — 13.2 KiB — 42 ms — h2https://fonts.gstatic.com/s/cormorantgaramond/v21/co3umX5slCNuHLi8bLeY9MK7whWMhyjypVO7abI26QOD_v86KnTOig.woff2fonts.gstatic.com/s/cormorantgaramo... https://fonts.gstatic.com/s/cormorantgaramond/v21/co3umX5slCNuHLi8bLeY9MK7whWMhyjypVO7abI26QOD_v86KnTOig.woff2 — 200 — 22.4 KiB — 85 ms — h3https://clinicsofnorthtexas.com/wp-content/uploads/bb-plugin/cache/hero-21-row-1_image/wp-content/uploads/bb-plugin/cache... https://clinicsofnorthtexas.com/wp-content/uploads/bb-plugin/cache/hero-21-row-1_image — 404 — 49.1 KiB — 801 ms — h2https://clinicsofnorthtexas.com/wp-content/uploads/2026/03/hero-21_image-3.webp/wp-content/uploads/2026/03/hero-21... https://clinicsofnorthtexas.com/wp-content/uploads/2026/03/hero-21_image-3.webp — 200 — 160.5 KiB — 56 ms — h2https://clinicsofnorthtexas.com/wp-content/plugins/wp-rocket/assets/js/lazyload/17.8.3/lazyload.min.js/wp-content/plugins/wp-rocket/asset... https://clinicsofnorthtexas.com/wp-content/plugins/wp-rocket/assets/js/lazyload/17.8.3/lazyload.min.js — 200 — 3.3 KiB — 47 ms — h3data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20366%20236'%3E%3C/…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20366%20236'%3E%3C/… — 200 — 0 B — 0 ms — datadata:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20960%20732'%3E%3C/…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20960%20732'%3E%3C/… — 200 — 0 B — 0 ms — datadata:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%202460%201219'%3E%3…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%202460%201219'%3E%3… — 200 — 0 B — 0 ms — datadata:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%203840%201920'%3E%3…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%203840%201920'%3E%3… — 200 — 0 B — 0 ms — datahttps://clinicsofnorthtexas.com/wp-content/uploads/bb-plugin/cache/benefit-4-v1_background_image/wp-content/uploads/bb-plugin/cache... https://clinicsofnorthtexas.com/wp-content/uploads/bb-plugin/cache/benefit-4-v1_background_image — 404 — 49.2 KiB — 1.0 s — h3https://clinicsofnorthtexas.com/wp-content/plugins/bb-plugin/fonts/fontawesome/5.15.4/webfonts/fa-solid-900.woff2/wp-content/plugins/bb-plugin/fonts... https://clinicsofnorthtexas.com/wp-content/plugins/bb-plugin/fonts/fontawesome/5.15.4/webfonts/fa-solid-900.woff2 — 200 — 76.9 KiB — 41 ms — h3data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20235%2039'%3E%3C/s…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20235%2039'%3E%3C/s… — 200 — 0 B — 0 ms — datahttps://clinicsofnorthtexas.com/wp-content/smush-webp/2025/06/header-28_logo_image.png.webp/wp-content/smush-webp/2025/06/head... https://clinicsofnorthtexas.com/wp-content/smush-webp/2025/06/header-28_logo_image.png.webp — 200 — 25.6 KiB — 37 ms — h3https://clinicsofnorthtexas.com/wp-content/uploads/bb-plugin/cache/GettyImages-909346016-square.jpg/wp-content/uploads/bb-plugin/cache... https://clinicsofnorthtexas.com/wp-content/uploads/bb-plugin/cache/GettyImages-909346016-square.jpg — 200 — 113.8 KiB — 38 ms — h3https://clinicsofnorthtexas.com/wp-content/smush-webp/2026/03/cropped-fl-fav-icon-image-32x32.png.webp/wp-content/smush-webp/2026/03/crop... https://clinicsofnorthtexas.com/wp-content/smush-webp/2026/03/cropped-fl-fav-icon-image-32x32.png.webp — 200 — 1.0 KiB — 39 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
INFO

Chrome User Experience (CrUX)

Real-user metrics from the Chrome UX Report (2026-07-27 — 2026-08-23)

LCP (p75)

1130 ms

93% good

INP (p75)

56 ms

97% good

CLS (p75)

0.300

45% good

FCP (p75)

789 ms

TTFB (p75)

460 ms

Image Optimization
9 images, 185 KB total, 21 KB wasted
INFO

Image Optimization Audit

Total Images

9

Total Size

185 KB

Oversized

1

Wasted

21 KB

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

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