Skip to content
https://smartscan.tools/scan?id=bdeba2a2-6f71-403e-ad56-24f3bfcc7857

Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
93
GRADE
A
FIX
0
REVIEW
7
PASS
16
INFO
3

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

Mobile Desktop
64
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
95
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.
54
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.

2.94 s

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

3.24 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.

0.739

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

3.03 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.

3.24 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
16 PASS 7 REVIEW
B
Third-Party Impact
42% third-party, 0 ms blocking
REVIEW
42% third-party, 0 ms blocking
Info::
Third-party code accounts for 42% of page weight (74.6 KiB of 177.9 KiB)
Info::
Third-party blocking time is low (0 ms)
58%
42%
First-party Third-party
B
JS Execution Cost
667ms total JS execution
REVIEW
667ms total JS execution
Warning::
https://smartscan.tools/scan?id=bdeba2a2-6f71-403e...: 505ms CPU time
Info::
Unattributable: 162ms CPU time

Main Thread Breakdown

Style & Layout 39% Other 29% Script Evaluation 17% Parse HTML & CSS 6% Script Parsing & Compilation 4% Rendering 4%
ScriptTotalScriptingParse/CompileParty
https://smartscan.tools/scan?id=bdeba2a2-6f71-403e-ad56-24f3bfcc7857505ms78ms25ms1st
Unattributable162ms6ms0ms1st
B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
B
Document Compression
Document response uses gzip; brotli would be ~20% smaller
REVIEW
Document response uses gzip; brotli would be ~20% smaller
Info::
Main HTML response uses gzip (brotli would be ~20% smaller)
All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.
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

B
HTTP Caching
no-cache
REVIEW
no-cache
Info::
Cache-Control header is set
Got: no-cache
Info::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present
Cache-Control

no-cache

DirectiveValueMeaning
no-cache—Cache but always revalidate first
A+
Page Weight Budget
178 KB transferred, 15 requests
PASS
178 KB transferred, 15 requests
Info::
Page weighs 441 KB (178 KB transferred)
Info::
15 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
178 KB / 2.4 MB budget
178 KB transferred
15 requests
0.04 g CO2 per page load
Fonts 71.3 KiB 40%
HTML 36.3 KiB 20%
CSS 33.6 KiB 19%
JavaScript 27.9 KiB 16%
Other 5.0 KiB 3%
Other 2.6 KiB 1%
Other 1.2 KiB 1%
0 2.4 MB 4.9 MB
Under budget
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
No images on this page
PASS
No images on this page
Info::
No images on this page
0 images 0 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+
Font Loading
1 fonts (71 KB)
PASS
1 fonts (71 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

71 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 1.0 s 2.0 s 3.0 s FCP 2.9 s LCP 3.2 shttps://fonts.gstatic.com/s/inter/v20/UcCo3FwrK3iLTcviYwYZ8UA3.woff2UcCo3FwrK3iLTcviYwYZ8UA... https://fonts.gstatic.com/s/inter/v20/UcCo3FwrK3iLTcviYwYZ8UA3.woff2 — 71.3 KiB — 70 ms — font-display: swap
UcCo3FwrK3iLTcviYwYZ8UA... woff2 swap
Size 71 KB
Load time 70 ms
Start 276 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
5 scripts, 0 KB unused
PASS
5 scripts, 0 KB unused
Warning::
https://smartscan.tools/static/js/i18n.js?v=202610...: unminified — 2 KB could be saved
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://smartscan.tools/static/js/auth.js?v=20261015a8 KB—✓1st
https://smartscan.tools/static/js/api.js?v=20260913b2 KB—✓1st
https://smartscan.tools/static/js/i18n.js?v=20261015b13 KB—✗1st
https://smartscan.tools/static/js/analytics.js?v=20261015a2 KB—✓1st
https://lightmetrica.com/lm.js2 KB—✓3rd
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
4 hints, 0 missing preconnects
PASS
4 hints, 0 missing preconnects
Info::
Page uses 4 resource hint(s)

Current Resource Hints

preconnect
2
preload
2
dns-prefetch
—
prefetch
—

4 resource hints configured

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 uses no-cache -- safe revalidate-on-request policy
PASS
Main HTML uses no-cache -- safe revalidate-on-request policy
Info::
Main HTML uses no-cache -- safe revalidate-on-request policy
Got: no-cache
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::
Both `ETag` and `Last-Modified` present -- efficient revalidation supported
The page returns both `ETag` (content hash) and `Last-Modified` (timestamp) headers. Browsers can issue conditional GETs with `If-None-Match` or `If-Modified-Since`; the server returns 304 Not Modified for unchanged content, saving bandwidth. ETag is the more reliable of the two (timestamps fail in DST transitions and clock skew).
A
Page Weight Inventory
15 resources · 178 KB · 0 KB savings available
PASS
15 resources · 178 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 178 KB
Warning::
4 third-party resources (42% of weight)
15 resources · 177.9 KiB · 4 third-party Within 1MB page-weight target
Font 40% · 71.3 KiB
Document 20% · 36.3 KiB
CSS 19% · 33.6 KiB
JavaScript 16% · 27.9 KiB
Image 3% · 5.0 KiB
Other 2% · 3.8 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::
2 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
Asset Compression
No text asset hosts to measure
INFO
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall
15 requests over 540ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 2.9 s LCP 3.2 shttps://smartscan.tools/scan?id=bdeba2a2-6f71-403e-ad56-24f3bfcc7857/scan?id=bdeba2a2-6f71-403e-ad56-24... https://smartscan.tools/scan?id=bdeba2a2-6f71-403e-ad56-24f3bfcc7857 — 200 — 36.3 KiB — 133 ms — http/1.1https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,400;0,14..32,500;0,14..32,600;0,14..32,700;0,14..32,800&display=swapfonts.googleapis.com/css2?family=In... https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,400;0,14..32,500;0,14..32,600;0,14..32,700;0,14..32,800&display=swap — 200 — 1.2 KiB — 112 ms — h2https://smartscan.tools/static/css/style.css?v=20261015a/static/css/style.css?v=20261015a https://smartscan.tools/static/css/style.css?v=20261015a — 200 — 27.7 KiB — 62 ms — http/1.1https://smartscan.tools/static/css/design.css?v=20260714f/static/css/design.css?v=20260714f https://smartscan.tools/static/css/design.css?v=20260714f — 200 — 4.6 KiB — 32 ms — http/1.1https://smartscan.tools/static/js/auth.js?v=20261015a/static/js/auth.js?v=20261015a https://smartscan.tools/static/js/auth.js?v=20261015a — 200 — 8.5 KiB — 61 ms — http/1.1https://smartscan.tools/static/js/api.js?v=20260913b/static/js/api.js?v=20260913b https://smartscan.tools/static/js/api.js?v=20260913b — 200 — 1.9 KiB — 87 ms — http/1.1https://smartscan.tools/static/js/i18n.js?v=20261015b/static/js/i18n.js?v=20261015b https://smartscan.tools/static/js/i18n.js?v=20261015b — 200 — 13.3 KiB — 111 ms — http/1.1https://smartscan.tools/static/js/analytics.js?v=20261015a/static/js/analytics.js?v=20261015a https://smartscan.tools/static/js/analytics.js?v=20261015a — 200 — 2.3 KiB — 83 ms — http/1.1https://smartscan.tools/manifest.json/manifest.json https://smartscan.tools/manifest.json — 200 — 1.2 KiB — 88 ms — http/1.1https://smartscan.tools/api/jobs/bdeba2a2-6f71-403e-ad56-24f3bfcc7857/api/jobs/bdeba2a2-6f71-403e-ad56-2... https://smartscan.tools/api/jobs/bdeba2a2-6f71-403e-ad56-24f3bfcc7857 — 200 — 2.4 KiB — 39 ms — http/1.1https://fonts.gstatic.com/s/inter/v20/UcCo3FwrK3iLTcviYwYZ8UA3.woff2fonts.gstatic.com/s/inter/v20/UcCo3... https://fonts.gstatic.com/s/inter/v20/UcCo3FwrK3iLTcviYwYZ8UA3.woff2 — 200 — 71.3 KiB — 70 ms — h3https://lightmetrica.com/lm.jslightmetrica.com/lm.js https://lightmetrica.com/lm.js — 200 — 1.9 KiB — 156 ms — h2https://lightmetrica.com/api/elightmetrica.com/api/e https://lightmetrica.com/api/e — 202 — 178 B — 88 ms — h2https://smartscan.tools/favicon.svg/favicon.svg https://smartscan.tools/favicon.svg — 200 — 1.1 KiB — 43 ms — http/1.1https://smartscan.tools/favicon-192.png/favicon-192.png https://smartscan.tools/favicon-192.png — 200 — 3.9 KiB — 41 ms — http/1.1
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 (2026-10-09 — 2026-11-05)

LCP (p75)

1522 ms

86% good

INP (p75)

95 ms

91% good

CLS (p75)

0.290

53% good

FCP (p75)

1005 ms

TTFB (p75)

628 ms

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

Send Feedback