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https://sniprelay.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
97
GRADE
A+
FIX
1
REVIEW
0
PASS
12
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.
94
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.

282 ms

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

302 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.

0.000

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

994 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.

302 ms

Page Load Progression

514 ms
1.0 s
1.5 s
2.1 s
2.6 s
3.1 s
3.6 s
4.1 s
Checks
15
12 PASS 1 FIX
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

A+
Page Weight Budget
93 KB transferred, 10 requests
PASS
93 KB transferred, 10 requests
Info::
Page weighs 316 KB (93 KB transferred)
Info::
10 HTTP requests
Info::
Estimated 0.02 g CO2 per page load
93 KB / 2.4 MB budget
93 KB transferred
10 requests
0.02 g CO2 per page load
Other 46.5 KiB 50%
HTML 17.7 KiB 19%
JavaScript 16.6 KiB 18%
CSS 10.7 KiB 11%
Images 1.3 KiB 1%
Other 421 B 0%
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
1 images, 0 KB saveable
PASS
1 images, 0 KB saveable
Warning::
https://sniprelay.com/static/img/logo/sniprelay.df... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
1 images 1 KB
0 oversized -0 KB
1 legacy format
1 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

A+
JS Execution Cost
180ms total JS execution
PASS
180ms total JS execution
Info::
https://sniprelay.com/: 94ms CPU time
Info::
Unattributable: 86ms CPU time
Info::
Third-party scripts: 86ms (48% of total)

Main Thread Breakdown

Other 51% Style & Layout 30% Script Evaluation 7% Rendering 6% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://sniprelay.com/94ms1ms0ms1st
Unattributable86ms2ms0ms3rd
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
4 scripts, 0 KB unused
PASS
4 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://sniprelay.com/static/js/nav.6e0a36acae03.js0 KB—✓1st
https://sniprelay.com/static/js/htmx-2.0.8.min.d073ff63d1ed.js15 KB—✓1st
https://sniprelay.com/static/js/command.a483099f1eac.js1 KB—✓1st
https://sniprelay.com/static/js/pricing.5957a72961f1.js1 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+
Page Weight Inventory
10 resources · 93 KB · 0 KB savings available
PASS
10 resources · 93 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 93 KB
10 resources · 93.2 KiB · 0 third-party Within 1MB page-weight target
Image 51% · 47.8 KiB
Document 19% · 17.7 KiB
JavaScript 18% · 16.6 KiB
CSS 11% · 10.7 KiB
Other 0% · 421 B
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: OVHcloud

Network Waterfall
10 requests over 1900ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 282 ms LCP 302 mshttps://sniprelay.com// https://sniprelay.com/ — 200 — 17.7 KiB — 1.0 s — h2https://sniprelay.com/static/js/nav.6e0a36acae03.js/static/js/nav.6e0a36acae03.js https://sniprelay.com/static/js/nav.6e0a36acae03.js — 200 — 346 B — 204 ms — h2https://sniprelay.com/static/js/htmx-2.0.8.min.d073ff63d1ed.js/static/js/htmx-2.0.8.min.d073ff63d... https://sniprelay.com/static/js/htmx-2.0.8.min.d073ff63d1ed.js — 200 — 14.9 KiB — 207 ms — h2https://sniprelay.com/static/css/tailwind.4bd4b59cd91b.css/static/css/tailwind.4bd4b59cd91b.c... https://sniprelay.com/static/css/tailwind.4bd4b59cd91b.css — 200 — 10.7 KiB — 209 ms — h2https://sniprelay.com/static/img/logo/sniprelay.df0e5215cb16.svg/static/img/logo/sniprelay.df0e5215... https://sniprelay.com/static/img/logo/sniprelay.df0e5215cb16.svg — 200 — 1.3 KiB — 205 ms — h2https://sniprelay.com/static/js/command.a483099f1eac.js/static/js/command.a483099f1eac.js https://sniprelay.com/static/js/command.a483099f1eac.js — 200 — 763 B — 204 ms — h2https://sniprelay.com/static/js/pricing.5957a72961f1.js/static/js/pricing.5957a72961f1.js https://sniprelay.com/static/js/pricing.5957a72961f1.js — 200 — 664 B — 204 ms — h2https://sniprelay.com/static/manifest.b767667cf1ab.json/static/manifest.b767667cf1ab.json https://sniprelay.com/static/manifest.b767667cf1ab.json — 200 — 421 B — 612 ms — h2https://sniprelay.com/static/img/logo/sniprelay.57c225882e8b.png/static/img/logo/sniprelay.57c22588... https://sniprelay.com/static/img/logo/sniprelay.57c225882e8b.png — 200 — 23.3 KiB — 205 ms — h2https://sniprelay.com/static/img/logo/sniprelay.png/static/img/logo/sniprelay.png https://sniprelay.com/static/img/logo/sniprelay.png — 200 — 23.3 KiB — 205 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
48% of JavaScript execution is third-party
First-party Third-party 86ms · 0KB · €1/mo
Unattributable
Other
Optional
Execution 86ms
Transfer 0 KB
Monthly Cost €1/mo

48% 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

How third-party costs are calculated

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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