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https://netxpsych.com

Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
95
GRADE
A
FIX
0
REVIEW
4
PASS
19
INFO
3

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

Mobile Desktop
99
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
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.

1.11 s

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

1.86 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.

0.038

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

2.37 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.

1.86 s

Page Load Progression

449 ms
899 ms
1.3 s
1.8 s
2.2 s
2.7 s
3.1 s
3.6 s
Checks
26
19 PASS 4 REVIEW
B
JS Execution Cost
544ms total JS execution
REVIEW
544ms total JS execution
Warning::
https://netxpsych.com/: 273ms CPU time
Info::
Unattributable: 179ms CPU time
Info::
https://netxpsych.com/script.js: 92ms CPU time
Info::
Third-party scripts: 179ms (33% of total)

Main Thread Breakdown

Other 45% Style & Layout 27% Script Evaluation 15% Parse HTML & CSS 6% Rendering 6%
ScriptTotalScriptingParse/CompileParty
https://netxpsych.com/273ms6ms1ms1st
Unattributable179ms7ms0ms3rd
https://netxpsych.com/script.js92ms63ms5ms1st
C
Compression Algorithm
Action
Main response served uncompressed
REVIEW
Main response served uncompressed
Info::
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
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.
B
HTTP Caching
public, max-age=0, must-revalidate
REVIEW
public, max-age=0, must-revalidate
Info::
Cache-Control header is set
Got: public, max-age=0, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, max-age=0, must-revalidate

DirectiveValueMeaning
public—Any cache may store this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
A+
Page Weight Budget
191 KB transferred, 29 requests
PASS
191 KB transferred, 29 requests
Info::
Page weighs 450 KB (191 KB transferred)
Info::
29 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
191 KB / 2.4 MB budget
191 KB transferred
29 requests
0.04 g CO2 per page load
Images 77.9 KiB 41%
Other 49.0 KiB 26%
CSS 23.5 KiB 12%
JavaScript 19.1 KiB 10%
Other 14.1 KiB 7%
HTML 6.8 KiB 4%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
No third-party resources
PASS
No third-party resources
Info::
No third-party resources detected
No third-party resources detected — all resources are first-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
4 images, 0 KB saveable
PASS
4 images, 0 KB saveable
Warning::
https://netxpsych.com/assets/images/logo.webp is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://netxpsych.com/assets/images/Anna_Kuklina.w... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://netxpsych.com/assets/images/Ryan_Poch.webp is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
4 images 78 KB
0 oversized -0 KB
0 legacy format
3 missing dimensions CLS 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

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

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

A+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
A
JS Bundles
2 scripts, 0 KB unused
PASS
2 scripts, 0 KB unused
Warning::
https://netxpsych.com/script.js: unminified — 3 KB could be saved
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://netxpsych.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js1 KB—✓1st
https://netxpsych.com/script.js18 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
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+
Main HTML Cache-Control
Main HTML max-age=0 (≤ 5min) is appropriate
PASS
Main HTML max-age=0 (≤ 5min) is appropriate
Info::
Main HTML max-age=0 (≤ 5min) is appropriate
Got: public, max-age=0, must-revalidate
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::
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
29 resources · 191 KB · 0 KB savings available
PASS
29 resources · 191 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 191 KB
29 resources · 190.5 KiB · 0 third-party Within 1MB page-weight target
Image 46% · 87.1 KiB
Document 29% · 55.8 KiB
CSS 12% · 23.5 KiB
JavaScript 10% · 19.1 KiB
Other 3% · 4.9 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
1 JS blocking issue(s) detected
PASS
1 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.
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

Network Waterfall
29 requests over 665ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 1.1 s LCP 1.9 shttps://netxpsych.com// https://netxpsych.com/ — 200 — 6.8 KiB — 104 ms — h2https://netxpsych.com/style.css/style.css https://netxpsych.com/style.css — 200 — 23.5 KiB — 90 ms — h2https://netxpsych.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js/cdn-cgi/scripts/5c5dd728/cloudflar... https://netxpsych.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js — 200 — 952 B — 25 ms — h2https://netxpsych.com/script.js/script.js https://netxpsych.com/script.js — 200 — 18.2 KiB — 99 ms — h2https://netxpsych.com/assets/images/background.webp/assets/images/background.webp https://netxpsych.com/assets/images/background.webp — 200 — 11.2 KiB — 170 ms — h3https://netxpsych.com/assets/images/logo.webp/assets/images/logo.webp https://netxpsych.com/assets/images/logo.webp — 200 — 51.3 KiB — 149 ms — h3https://netxpsych.com/assets/images/Anna_Kuklina.webp/assets/images/Anna_Kuklina.webp https://netxpsych.com/assets/images/Anna_Kuklina.webp — 200 — 8.2 KiB — 130 ms — h3https://netxpsych.com/assets/images/Ryan_Poch.webp/assets/images/Ryan_Poch.webp https://netxpsych.com/assets/images/Ryan_Poch.webp — 200 — 7.3 KiB — 133 ms — h3https://netxpsych.com/nav.html/nav.html https://netxpsych.com/nav.html — 308 — 578 B — 46 ms — h3https://netxpsych.com/nav/nav https://netxpsych.com/nav — 200 — 776 B — 81 ms — h3https://netxpsych.com/footer.html/footer.html https://netxpsych.com/footer.html — 308 — 540 B — 29 ms — h3https://netxpsych.com/assets/images/favicon.ico/assets/images/favicon.ico https://netxpsych.com/assets/images/favicon.ico — 200 — 9.1 KiB — 54 ms — h3https://netxpsych.com/footer/footer https://netxpsych.com/footer — 200 — 1.4 KiB — 75 ms — h3https://netxpsych.com/faq.html/faq.html https://netxpsych.com/faq.html — 308 — 540 B — 29 ms — h3https://netxpsych.com/faq.html/faq.html https://netxpsych.com/faq.html — 308 — 0 B — 29 ms — h3https://netxpsych.com/services.html/services.html https://netxpsych.com/services.html — 308 — 546 B — 29 ms — h3https://netxpsych.com/contact.html/contact.html https://netxpsych.com/contact.html — 308 — 755 B — 30 ms — h3https://netxpsych.com/index.html/index.html https://netxpsych.com/index.html — 301 — 443 B — 19 ms — h3https://netxpsych.com/privacy-policy.html/privacy-policy.html https://netxpsych.com/privacy-policy.html — 308 — 556 B — 32 ms — h3https://netxpsych.com/hipaa-notice.html/hipaa-notice.html https://netxpsych.com/hipaa-notice.html — 308 — 548 B — 31 ms — h3https://netxpsych.com/terms-of-use.html/terms-of-use.html https://netxpsych.com/terms-of-use.html — 308 — 544 B — 28 ms — h3https://netxpsych.com// https://netxpsych.com/ — 200 — 6.8 KiB — 60 ms — h3https://netxpsych.com/faq/faq https://netxpsych.com/faq — 200 — 12.1 KiB — 82 ms — h3https://netxpsych.com/faq/faq https://netxpsych.com/faq — 200 — 12.0 KiB — 138 ms — h3https://netxpsych.com/services/services https://netxpsych.com/services — 200 — 2.8 KiB — 81 ms — h3https://netxpsych.com/terms-of-use/terms-of-use https://netxpsych.com/terms-of-use — 200 — 2.5 KiB — 74 ms — h3https://netxpsych.com/contact/contact https://netxpsych.com/contact — 200 — 3.5 KiB — 73 ms — h3https://netxpsych.com/hipaa-notice/hipaa-notice https://netxpsych.com/hipaa-notice — 200 — 4.1 KiB — 63 ms — h3https://netxpsych.com/privacy-policy/privacy-policy https://netxpsych.com/privacy-policy — 200 — 2.9 KiB — 81 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
33% of JavaScript execution is third-party
First-party Third-party 179ms · 0KB · $3/mo
Unattributable
Other
Optional
Execution 179ms
Transfer 0 KB
Monthly Cost $3/mo

How third-party costs are calculated

Image Optimization
4 images, 51 KB total, 46 KB wasted
INFO

Image Optimization Audit

Total Images

4

Total Size

51 KB

Oversized

1

Wasted

46 KB

4 missing dimensions 1 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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