https://clinicsofnorthtexas.com/?utm_source=google&utm_medium=organic&utm_campaign=gbp

Performance

· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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

Mobile Desktop

Performance

Accessibility

Best Practices

100

SEO

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

380 ms

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

940 ms

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.

0.036

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

380 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.

940 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

15 PASS 4 REVIEW

Image Optimization

11 images, 0 KB saveable

REVIEW

11 images, 0 KB saveable

All images are well-optimized

11 images 447 KB

0 oversized -0 KB

4 legacy format

0 missing dimensions CLS risk

Main HTML Cache-Control

Action

Main HTML max-age=2678400 (~44640min) is aggressive

REVIEW

Main HTML max-age=2678400 (~44640min) is aggressive

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Long max-age on the main HTML document means users may see outdated auth state, SPA shells, or A/B variants until the cache expires.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

Server-Timing Observability

No Server-Timing header found

REVIEW

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.

Green Hosting

Action

Whether the site is served from green-energy infrastructure

REVIEW

Green Hosting

No green hosting detected

A+

Page Weight Budget

671 KB transferred, 18 requests

PASS

671 KB transferred, 18 requests

Page weighs 1.0 MB (671 KB transferred)

18 HTTP requests

Estimated 0.14 g CO2 per page load

671 KB transferred

18 requests

0.14 g CO2 per page load

Images 447.5 KiB 67%

Fonts 159.6 KiB 24%

HTML 60.0 KiB 9%

JavaScript 3.3 KiB 0%

Other 1.0 KiB 0%

0 2.4 MB 4.9 MB

Under budget

A+

Third-Party Impact

10% third-party, 0 ms blocking

PASS

10% third-party, 0 ms blocking

Third-party code accounts for 10% of page weight (69.5 KiB of 671.5 KiB)

Third-party blocking time is low (0 ms)

90%

First-party Third-party

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

JS Execution Cost

127ms total JS execution

PASS

127ms total JS execution

https://clinicsofnorthtexas.com/?utm_source=google...: 127ms CPU time

Main Thread Breakdown

Style & Layout 35% Other 27% Script Evaluation 17% Parse HTML & CSS 13% Rendering 6%

Script	Total	Scripting	Parse/Compile	Party
https://clinicsofnorthtexas.com/?utm_source=google&utm_medium=organic&utm_campaign=gbp	127ms	23ms	2ms	1st

A+

Font Loading

4 fonts (160 KB)

PASS

4 fonts (160 KB)

4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

160 KB total

Render-blocking

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

UcC73FwrK3iLTeHuS_nVMrM... woff2 swap

Size 47 KB

Load time 77 ms

Start 42 ms

Risk FOUT — text flashes from fallback to web font

fa-regular-400.woff2 woff2 swap

Size 13 KB

Load time 30 ms

Start 43 ms

Risk FOUT — text flashes from fallback to web font

co3umX5slCNuHLi8bLeY9MK... woff2 swap

Size 22 KB

Load time 71 ms

Start 43 ms

Risk FOUT — text flashes from fallback to web font

fa-solid-900.woff2 woff2 swap

Size 77 KB

Load time 17 ms

Start 135 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.

Script	Size	Unused	Minified	Party
https://clinicsofnorthtexas.com/wp-content/plugins/wp-rocket/assets/js/lazyload/17.8.3/lazyload.min.js	3 KB	—	✓	1st

A+

Resource Caching

All resources properly cached

PASS

All resources properly cached

No caching issues found

All static resources have appropriate caching headers.

A+

Critical Rendering Path

No render-blocking resources

PASS

No render-blocking resources

No render-blocking resources detected

A+

Resource Hints

No optimization needed

PASS

No optimization needed

No resource hint issues

A+

HTTP/3 (QUIC)

HTTP/3 advertised via Alt-Svc

PASS

HTTP/3 advertised via Alt-Svc

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

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

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

`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).

`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

18 resources · 671 KB · 0 KB savings available

PASS

18 resources · 671 KB · 0 KB savings available

Within 1MB page-weight target

Got: 671 KB

7 third-party resources (10% of weight)

18 resources · 671.5 KiB · 7 third-party Within 1MB page-weight target

Image 67% · 448.5 KiB

Font 24% · 159.6 KiB

Document 9% · 60.0 KiB

JavaScript 0% · 3.3 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

18 resources			671.5 KiB

A+

HTTP Caching

max-age=2678400 (4 weeks)

PASS

max-age=2678400 (4 weeks)

Cache-Control header is set

Got: public, max-age=2678400

Effective TTL: 4 weeks (max-age=2678400)

Last-Modified header present

Cache-Control

public, max-age=2678400

Directive	Value	Meaning
public	—	Any cache may store this response
max-age	2678400	Cache for 4 weeks

Effective TTL: 2678400 seconds

Network Waterfall

18 requests over 1540ms

INFO

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

Total Size

185 KB

Oversized

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.