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https://18webdesign.com

Performance

· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
93
GRADE
A
FIX
1
REVIEW
3
PASS
15
INFO
3

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.
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.

486 ms

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

545 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.

671 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.

546 ms

Page Load Progression

389 ms
777 ms
1.2 s
1.6 s
1.9 s
2.3 s
2.7 s
3.1 s
Checks
22
15 PASS 3 REVIEW 1 FIX
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: no-cache, no-store, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-cache, no-store, must-revalidate

DirectiveValueMeaning
no-cache—Cache but always revalidate first
no-store—Never cache this response
must-revalidate—Must recheck with server after expiry
B
JS Execution Cost
552ms total JS execution
REVIEW
552ms total JS execution
Warning::
https://18webdesign.com/: 481ms CPU time
Info::
Unattributable: 71ms CPU time

Main Thread Breakdown

Other 47% Style & Layout 31% Rendering 13% Script Evaluation 5%
ScriptTotalScriptingParse/CompileParty
https://18webdesign.com/481ms2ms0ms1st
Unattributable71ms1ms0ms1st
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
651 KB transferred, 21 requests
PASS
651 KB transferred, 21 requests
Info::
Page weighs 1.4 MB (651 KB transferred)
Info::
Fonts are 271 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 271 KB
Info::
21 HTTP requests
Info::
Estimated 0.13 g CO2 per page load
651 KB / 2.4 MB budget
651 KB transferred
21 requests
0.13 g CO2 per page load
Fonts 270.7 KiB 42%
Images 206.0 KiB 32%
CSS 104.7 KiB 16%
JavaScript 48.8 KiB 7%
HTML 10.4 KiB 2%
Other 9.7 KiB 1%
Other 974 B 0%
0 2.4 MB 4.9 MB
Under budget

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

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
5 images, 0 KB saveable
PASS
5 images, 0 KB saveable
Info::
All images are well-optimized
5 images 206 KB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
A+
Font Loading
2 fonts (271 KB)
PASS
2 fonts (271 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

271 KB total

Render-blocking

0

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 486 ms LCP 545 mshttps://18webdesign.com/webfonts/fa-solid-900.woff2fa-solid-900.woff2 https://18webdesign.com/webfonts/fa-solid-900.woff2 — 154.7 KiB — 198 ms — font-display: swaphttps://18webdesign.com/webfonts/fa-brands-400.woff2fa-brands-400.woff2 https://18webdesign.com/webfonts/fa-brands-400.woff2 — 116.0 KiB — 230 ms — font-display: swap
fa-solid-900.woff2 woff2 swap
Size 155 KB
Load time 198 ms
Start 467 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
fa-brands-400.woff2 woff2 swap
Size 116 KB
Load time 230 ms
Start 467 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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)

Fixing the unchecked items could save ~135 KB and ~270 ms

A
JS Bundles
5 scripts, 0 KB unused
PASS
5 scripts, 0 KB unused
Warning::
https://18webdesign.com/js/scripts.js: unminified — 3 KB could be saved
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://18webdesign.com/js/bootstrap.bundle.min.js22 KB—✓1st
https://18webdesign.com/js/aos.js4 KB—✓1st
https://18webdesign.com/js/cookieconsent.umd.js10 KB—✓1st
https://18webdesign.com/js/cookieconsent-config.js3 KB—✓1st
https://18webdesign.com/js/scripts.js10 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+
Document Compression
Document response uses brotli
PASS
Document 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+
Main HTML Cache-Control
Main HTML uses no-store -- correct for sensitive/dynamic content
PASS
Main HTML uses no-store -- correct for sensitive/dynamic content
Info::
Main HTML uses no-store -- correct for sensitive/dynamic content
Got: no-cache, no-store, 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
21 resources · 651 KB · 0 KB savings available
PASS
21 resources · 651 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 651 KB
21 resources · 651.3 KiB · 0 third-party Within 1MB page-weight target
Font 42% · 270.7 KiB
Image 33% · 215.7 KiB
CSS 16% · 104.7 KiB
JavaScript 7% · 48.8 KiB
Document 2% · 10.4 KiB
Other 0% · 974 B
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
21 requests over 794ms
INFO
0 ms 200 ms 400 ms 600 ms 800 ms FCP 486 ms LCP 545 mshttps://18webdesign.com// https://18webdesign.com/ — 200 — 10.4 KiB — 183 ms — h2https://18webdesign.com/css/bootstrap.min.css/css/bootstrap.min.css https://18webdesign.com/css/bootstrap.min.css — 200 — 27.8 KiB — 115 ms — h2https://18webdesign.com/css/18webdesign.min.css/css/18webdesign.min.css https://18webdesign.com/css/18webdesign.min.css — 200 — 52.9 KiB — 173 ms — h2https://18webdesign.com/css/font-awesome-6all.min.css/css/font-awesome-6all.min.css https://18webdesign.com/css/font-awesome-6all.min.css — 200 — 17.4 KiB — 172 ms — h2https://18webdesign.com/css/cookieconsent.css/css/cookieconsent.css https://18webdesign.com/css/cookieconsent.css — 200 — 5.1 KiB — 168 ms — h2https://18webdesign.com/css/aos.css/css/aos.css https://18webdesign.com/css/aos.css — 200 — 1.5 KiB — 168 ms — h2https://18webdesign.com/img/18-web-design-logo.svg/img/18-web-design-logo.svg https://18webdesign.com/img/18-web-design-logo.svg — 200 — 768 B — 170 ms — h2https://18webdesign.com/img/18-web-design-logo-white.svg/img/18-web-design-logo-white.svg https://18webdesign.com/img/18-web-design-logo-white.svg — 200 — 833 B — 170 ms — h2https://18webdesign.com/js/bootstrap.bundle.min.js/js/bootstrap.bundle.min.js https://18webdesign.com/js/bootstrap.bundle.min.js — 200 — 22.0 KiB — 175 ms — h2https://18webdesign.com/js/aos.js/js/aos.js https://18webdesign.com/js/aos.js — 200 — 4.4 KiB — 173 ms — h2https://18webdesign.com/js/cookieconsent.umd.js/js/cookieconsent.umd.js https://18webdesign.com/js/cookieconsent.umd.js — 200 — 9.6 KiB — 173 ms — h2https://18webdesign.com/js/cookieconsent-config.js/js/cookieconsent-config.js https://18webdesign.com/js/cookieconsent-config.js — 200 — 2.9 KiB — 173 ms — h2https://18webdesign.com/js/scripts.js/js/scripts.js https://18webdesign.com/js/scripts.js — 200 — 10.1 KiB — 173 ms — h2https://18webdesign.com/site.webmanifest/site.webmanifest https://18webdesign.com/site.webmanifest — 200 — 974 B — 165 ms — h2https://18webdesign.com/img/novaspaces.webp/img/novaspaces.webp https://18webdesign.com/img/novaspaces.webp — 200 — 65.7 KiB — 252 ms — h3https://18webdesign.com/img/platestudio.webp/img/platestudio.webp https://18webdesign.com/img/platestudio.webp — 200 — 50.9 KiB — 260 ms — h3https://18webdesign.com/img/capture.webp/img/capture.webp https://18webdesign.com/img/capture.webp — 200 — 87.9 KiB — 269 ms — h3https://18webdesign.com/webfonts/fa-solid-900.woff2/webfonts/fa-solid-900.woff2 https://18webdesign.com/webfonts/fa-solid-900.woff2 — 200 — 154.7 KiB — 198 ms — h3https://18webdesign.com/webfonts/fa-brands-400.woff2/webfonts/fa-brands-400.woff2 https://18webdesign.com/webfonts/fa-brands-400.woff2 — 200 — 116.0 KiB — 230 ms — h3https://18webdesign.com/favicon.ico/favicon.ico https://18webdesign.com/favicon.ico — 200 — 4.2 KiB — 56 ms — h3https://18webdesign.com/img/favicon/web-app-manifest-192x192.png/img/favicon/web-app-manifest-192x1... https://18webdesign.com/img/favicon/web-app-manifest-192x192.png — 200 — 5.4 KiB — 56 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization
5 images, 1 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

5

Total Size

1 KB

1 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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