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Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
83
GRADE
B
FIX
3
REVIEW
7
PASS
13
INFO
3

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

Mobile Desktop
34
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
58
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.
82
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.

3.81 s

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

32.39 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

281 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.391

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

12.56 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.

33.29 s

Page Load Progression

526 ms
1.1 s
1.6 s
2.1 s
2.6 s
3.2 s
3.7 s
4.2 s
Checks
26
13 PASS 7 REVIEW 3 FIX
F
Page Weight Budget
Action
7.4 MB transferred, 138 requests
FIX
7.4 MB transferred, 138 requests
Critical::
Page weighs 9.2 MB (7.4 MB transferred)
Warning::
Images are 6.6 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 6.6 MB
Info::
Fonts are 220 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 220 KB
Warning::
138 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.5 g CO2 per page load
7.4 MB / 2.4 MB budget
7.4 MB transferred
138 requests
1.5 g CO2 per page load
Images 6.6 MiB 89%
JavaScript 454.1 KiB 6%
Fonts 219.9 KiB 3%
CSS 136.8 KiB 2%
HTML 8.7 KiB 0%
Other 3.6 KiB 0%
Other 546 B 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

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

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

D
JS Execution Cost
Action
3494ms total JS execution
FIX
3494ms total JS execution
Warning::
https://com21.co.ke/revolution/js/jquery.themepunc...: 1213ms CPU time
Warning::
Unattributable: 600ms CPU time
Warning::
https://com21.co.ke/: 437ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-H7KM...: 380ms CPU time
Warning::
https://com21.co.ke/js/jquery-3.3.1.min.js: 325ms CPU time
Info::
Third-party scripts: 380ms (11% of total)

Main Thread Breakdown

Script Evaluation 35% Other 33% Style & Layout 18% Rendering 7% Script Parsing & Compilation 3% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://com21.co.ke/revolution/js/jquery.themepunch.tools.min.js1213ms431ms7ms1st
Unattributable600ms6ms0ms1st
https://com21.co.ke/437ms4ms1ms1st
https://www.googletagmanager.com/gtag/js?id=G-H7KMQYWW3E380ms187ms41ms3rd
https://com21.co.ke/js/jquery-3.3.1.min.js325ms251ms7ms1st
https://com21.co.ke/js/custom.js296ms228ms3ms1st
https://com21.co.ke/js/plugins-jquery.js165ms95ms27ms1st
https://com21.co.ke/js/raindrops/raindrops.js77ms75ms1ms1st
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.
Info::
Last-Modified header present

No Cache-Control header

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

C
Image Optimization
Action
56 images, 0 KB saveable
REVIEW
56 images, 0 KB saveable
Warning::
https://com21.co.ke/images/14.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/19.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/22.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/29.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/13.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/15.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/2.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/6.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/28.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/30.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/33.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/34.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/logo1.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/5aa.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/12.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/21.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/25.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/35.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/iso.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/8.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/17.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/27.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/7.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/11.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/18.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/20.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/31.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/10.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/home10a.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/home12.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/saf1.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/5.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/9.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/23.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/mag1.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/1.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/3.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/24.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/26.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/32.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/36.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/bri1.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/4.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://com21.co.ke/images/16.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
56 images 6.6 MB
0 oversized -0 KB
56 legacy format
44 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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

C
JS Bundles
Action
21 scripts, 162 KB unused
REVIEW
21 scripts, 162 KB unused
Warning::
https://com21.co.ke/js/plugins-jquery.js: 93 KB unused (81%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-H7KM...: 69 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 162 KB
162 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://com21.co.ke/js/plugins-jquery.js115 KB93 KB (81%)✓1st
https://www.googletagmanager.com/gtag/js?id=G-H7KMQYWW3E157 KB69 KB (44%)✓3rd
https://com21.co.ke/revolution/js/extensions/revolution.extension.navigation.min.js7 KB—✓1st
https://com21.co.ke/revolution/js/extensions/revolution.extension.parallax.min.js3 KB—✓1st
https://com21.co.ke/revolution/js/jquery.themepunch.revolution.min.js17 KB—✓1st
https://com21.co.ke/revolution/js/extensions/revolution.extension.actions.min.js2 KB—✓1st
https://com21.co.ke/revolution/js/extensions/revolution.extension.carousel.min.js2 KB—✓1st
https://com21.co.ke/revolution/js/extensions/revolution.extension.kenburn.min.js1 KB—✓1st
https://com21.co.ke/revolution/js/extensions/revolution.extension.layeranimation.min.js14 KB—✓1st
https://com21.co.ke/revolution/js/extensions/revolution.extension.migration.min.js7 KB—✓1st

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
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
Page Weight Inventory
Action
138 resources · 7.4 MB · 162 KB savings available
REVIEW
138 resources · 7.4 MB · 162 KB savings available
Warning::
Page weight 7.4 MB exceeds 1 MB target by 6.4 MB
Got: 7.4 MB Expected: ≤ 1 MB
Info::
~162 KB of savings available
Info::
11 third-party resources (3% of weight)
Info::
13 resources over 200KB
138 resources · 7.4 MiB · 11 third-party 6.4 MiB over 1MB target
Image 89% · 6.6 MiB
JavaScript 6% · 454.1 KiB
Font 3% · 219.9 KiB
CSS 2% · 136.8 KiB
Document 0% · 8.7 KiB
Other 0% · 546 B

~162.2 KiB of savings available

Remove unused JavaScript: 162.2 KiB
B
JavaScript Blocking
1 JS blocking issue(s) detected
REVIEW
1 JS blocking issue(s) detected
Warning::
20 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.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Third-Party Impact
3% third-party, 0 ms blocking
PASS
3% third-party, 0 ms blocking
Info::
Third-party code accounts for 3% of page weight (242.1 KiB of 7.4 MiB)
Info::
Third-party blocking time is low (0 ms)
97%
First-party Third-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+
Font Loading
10 fonts (220 KB)
PASS
10 fonts (220 KB)
Info::
10 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

10

220 KB total

Render-blocking

0

of 10

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s 18.0 s 20.0 s 22.0 s 24.0 s 26.0 s 28.0 s 30.0 s 32.0 s 34.0 s FCP 3.8 s LCP 32.4 shttps://fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2pxiEyp8kv8JHgFVrJJfecnF... https://fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2 — 7.7 KiB — 39 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLGT9Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLGT9Z1x... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLGT9Z1xlFd2JQEk.woff2 — 7.6 KiB — 63 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLCz7Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLCz7Z1x... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLCz7Z1xlFd2JQEk.woff2 — 7.7 KiB — 49 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiGyp8kv8JHgFVrJJLucHtAOvWDSA.woff2pxiGyp8kv8JHgFVrJJLucHt... https://fonts.gstatic.com/s/poppins/v24/pxiGyp8kv8JHgFVrJJLucHtAOvWDSA.woff2 — 8.5 KiB — 56 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiDyp8kv8JHgFVrJJLmg1hVF9eOYktMqg.woff2pxiDyp8kv8JHgFVrJJLmg1h... https://fonts.gstatic.com/s/poppins/v24/pxiDyp8kv8JHgFVrJJLmg1hVF9eOYktMqg.woff2 — 8.3 KiB — 43 ms — font-display: swaphttps://com21.co.ke/fonts/fontawesome-webfont.woff2?v=4.7.0fontawesome-webfont.woff2 https://com21.co.ke/fonts/fontawesome-webfont.woff2?v=4.7.0 — 75.4 KiB — 278 ms — font-display: swaphttps://com21.co.ke/fonts/themify.woff?-fvbanethemify.woff https://com21.co.ke/fonts/themify.woff?-fvbane — 54.9 KiB — 318 ms — font-display: swaphttps://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2JTUSjIg1_i6t8kCHKm459Wl... https://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2 — 34.7 KiB — 50 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLDz8Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLDz8Z1x... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLDz8Z1xlFd2JQEk.woff2 — 7.7 KiB — 49 ms — font-display: swaphttps://com21.co.ke/revolution/fonts/revicons/revicons.woff?5510888revicons.woff https://com21.co.ke/revolution/fonts/revicons/revicons.woff?5510888 — 7.4 KiB — 192 ms — font-display: swap
pxiEyp8kv8JHgFVrJJfecnF... woff2 swap
Size 8 KB
Load time 39 ms
Start 984 ms
Risk FOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLGT9Z1x... woff2 swap
Size 8 KB
Load time 63 ms
Start 985 ms
Risk FOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLCz7Z1x... woff2 swap
Size 8 KB
Load time 49 ms
Start 985 ms
Risk FOUT — text flashes from fallback to web font
pxiGyp8kv8JHgFVrJJLucHt... woff2 swap
Size 8 KB
Load time 56 ms
Start 986 ms
Risk FOUT — text flashes from fallback to web font
pxiDyp8kv8JHgFVrJJLmg1h... woff2 swap
Size 8 KB
Load time 43 ms
Start 986 ms
Risk FOUT — text flashes from fallback to web font
fontawesome-webfont.woff2 woff2 swap
Size 75 KB
Load time 278 ms
Start 1.4 s
Risk FOUT — text flashes from fallback to web font
themify.woff woff swap
Size 55 KB
Load time 318 ms
Start 1.4 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
JTUSjIg1_i6t8kCHKm459Wl... woff2 swap
Size 35 KB
Load time 50 ms
Start 1.4 s
Risk FOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLDz8Z1x... woff2 swap
Size 8 KB
Load time 49 ms
Start 1.4 s
Risk FOUT — text flashes from fallback to web font
revicons.woff woff swap
Size 7 KB
Load time 192 ms
Start 1.6 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
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 ~19 KB and ~38 ms

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+
Compression Algorithm
Main response uses brotli
PASS
Main 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+
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Info::
`Vary` header declared: Accept-Encoding,User-Agent
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::
`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+
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
CSS Performance Depth
1 CSS depth issue(s) detected
PASS
1 CSS depth issue(s) detected
Warning::
10 render-blocking stylesheet(s) -- recommended: <=3
Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.
Network Waterfall
138 requests over 2336ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s 18.0 s 20.0 s 22.0 s 24.0 s 26.0 s 28.0 s 30.0 s 32.0 s 34.0 s FCP 3.8 s LCP 32.4 shttps://com21.co.ke// https://com21.co.ke/ — 200 — 8.7 KiB — 458 ms — h2https://www.googletagmanager.com/gtag/js?id=G-H7KMQYWW3Ewww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-H7KMQYWW3E — 200 — 157.0 KiB — 413 ms — h2https://fonts.googleapis.com/css?family=Montserrat:300,300i,400,500,500i,600,700,800,900|Poppins:200,300,300i,400,400i,500,500i,600,600i,700,700i,800,800i,900fonts.googleapis.com/css?family=Mon... https://fonts.googleapis.com/css?family=Montserrat:300,300i,400,500,500i,600,700,800,900|Poppins:200,300,300i,400,400i,500,500i,600,600i,700,700i,800,800i,900 — 200 — 1.4 KiB — 95 ms — h2https://fonts.googleapis.com/css?family=Dosis:300,400,500,600,700,800fonts.googleapis.com/css?family=Dos... https://fonts.googleapis.com/css?family=Dosis:300,400,500,600,700,800 — 200 — 1.0 KiB — 93 ms — h2https://com21.co.ke/css/plugins-css.css/css/plugins-css.css https://com21.co.ke/css/plugins-css.css — 200 — 420 B — 151 ms — h2https://com21.co.ke/revolution/css/settings.css/revolution/css/settings.css https://com21.co.ke/revolution/css/settings.css — 200 — 6.8 KiB — 151 ms — h2https://com21.co.ke/css/typography.css/css/typography.css https://com21.co.ke/css/typography.css — 200 — 2.3 KiB — 152 ms — h2https://com21.co.ke/css/shortcodes/shortcodes.css/css/shortcodes/shortcodes.css https://com21.co.ke/css/shortcodes/shortcodes.css — 200 — 432 B — 292 ms — h2https://com21.co.ke/css/style.css/css/style.css https://com21.co.ke/css/style.css — 200 — 25.7 KiB — 296 ms — h2https://com21.co.ke/demo-categories/marketing/css/marketing.css/demo-categories/marketing/css/mark... https://com21.co.ke/demo-categories/marketing/css/marketing.css — 200 — 1.2 KiB — 294 ms — h2https://com21.co.ke/css/responsive.css/css/responsive.css https://com21.co.ke/css/responsive.css — 200 — 16.7 KiB — 399 ms — h2https://com21.co.ke/css/skins/skin-red.css/css/skins/skin-red.css https://com21.co.ke/css/skins/skin-red.css — 200 — 3.7 KiB — 297 ms — h2https://com21.co.ke/images/pre-loader/loader-10.svg/images/pre-loader/loader-10.svg https://com21.co.ke/images/pre-loader/loader-10.svg — 200 — 387 B — 444 ms — h2https://com21.co.ke/images/logo1.png/images/logo1.png https://com21.co.ke/images/logo1.png — 200 — 9.9 KiB — 444 ms — h2https://com21.co.ke/images/home1.jpg/images/home1.jpg https://com21.co.ke/images/home1.jpg — 200 — 822.2 KiB — 1.4 s — h2https://com21.co.ke/images/home2.jpg/images/home2.jpg https://com21.co.ke/images/home2.jpg — 200 — 653.6 KiB — 1.4 s — h2https://com21.co.ke/images/home10a.jpg/images/home10a.jpg https://com21.co.ke/images/home10a.jpg — 200 — 359.3 KiB — 1.2 s — h2https://com21.co.ke/js/jquery-3.3.1.min.js/js/jquery-3.3.1.min.js https://com21.co.ke/js/jquery-3.3.1.min.js — 200 — 29.0 KiB — 447 ms — h2https://com21.co.ke/js/plugins-jquery.js/js/plugins-jquery.js https://com21.co.ke/js/plugins-jquery.js — 200 — 115.2 KiB — 1.0 s — h2https://com21.co.ke/revolution/js/jquery.themepunch.tools.min.js/revolution/js/jquery.themepunch.to... https://com21.co.ke/revolution/js/jquery.themepunch.tools.min.js — 200 — 36.3 KiB — 692 ms — h2https://com21.co.ke/revolution/js/jquery.themepunch.revolution.min.js/revolution/js/jquery.themepunch.re... https://com21.co.ke/revolution/js/jquery.themepunch.revolution.min.js — 200 — 16.9 KiB — 852 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.actions.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.actions.min.js — 200 — 2.4 KiB — 677 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.carousel.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.carousel.min.js — 200 — 2.4 KiB — 903 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.kenburn.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.kenburn.min.js — 200 — 1.4 KiB — 680 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.layeranimation.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.layeranimation.min.js — 200 — 13.5 KiB — 903 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.migration.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.migration.min.js — 200 — 6.5 KiB — 902 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.navigation.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.navigation.min.js — 200 — 6.6 KiB — 683 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.parallax.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.parallax.min.js — 200 — 3.0 KiB — 903 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.slideanims.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.slideanims.min.js — 200 — 6.5 KiB — 903 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.video.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.video.min.js — 200 — 6.1 KiB — 869 ms — h2
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s 18.0 s 20.0 s 22.0 s 24.0 s 26.0 s 28.0 s 30.0 s 32.0 s 34.0 s FCP 3.8 s LCP 32.4 shttps://com21.co.ke// https://com21.co.ke/ — 200 — 8.7 KiB — 458 ms — h2https://www.googletagmanager.com/gtag/js?id=G-H7KMQYWW3Ewww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-H7KMQYWW3E — 200 — 157.0 KiB — 413 ms — h2https://fonts.googleapis.com/css?family=Montserrat:300,300i,400,500,500i,600,700,800,900|Poppins:200,300,300i,400,400i,500,500i,600,600i,700,700i,800,800i,900fonts.googleapis.com/css?family=Mon... https://fonts.googleapis.com/css?family=Montserrat:300,300i,400,500,500i,600,700,800,900|Poppins:200,300,300i,400,400i,500,500i,600,600i,700,700i,800,800i,900 — 200 — 1.4 KiB — 95 ms — h2https://fonts.googleapis.com/css?family=Dosis:300,400,500,600,700,800fonts.googleapis.com/css?family=Dos... https://fonts.googleapis.com/css?family=Dosis:300,400,500,600,700,800 — 200 — 1.0 KiB — 93 ms — h2https://com21.co.ke/css/plugins-css.css/css/plugins-css.css https://com21.co.ke/css/plugins-css.css — 200 — 420 B — 151 ms — h2https://com21.co.ke/revolution/css/settings.css/revolution/css/settings.css https://com21.co.ke/revolution/css/settings.css — 200 — 6.8 KiB — 151 ms — h2https://com21.co.ke/css/typography.css/css/typography.css https://com21.co.ke/css/typography.css — 200 — 2.3 KiB — 152 ms — h2https://com21.co.ke/css/shortcodes/shortcodes.css/css/shortcodes/shortcodes.css https://com21.co.ke/css/shortcodes/shortcodes.css — 200 — 432 B — 292 ms — h2https://com21.co.ke/css/style.css/css/style.css https://com21.co.ke/css/style.css — 200 — 25.7 KiB — 296 ms — h2https://com21.co.ke/demo-categories/marketing/css/marketing.css/demo-categories/marketing/css/mark... https://com21.co.ke/demo-categories/marketing/css/marketing.css — 200 — 1.2 KiB — 294 ms — h2https://com21.co.ke/css/responsive.css/css/responsive.css https://com21.co.ke/css/responsive.css — 200 — 16.7 KiB — 399 ms — h2https://com21.co.ke/css/skins/skin-red.css/css/skins/skin-red.css https://com21.co.ke/css/skins/skin-red.css — 200 — 3.7 KiB — 297 ms — h2https://com21.co.ke/images/pre-loader/loader-10.svg/images/pre-loader/loader-10.svg https://com21.co.ke/images/pre-loader/loader-10.svg — 200 — 387 B — 444 ms — h2https://com21.co.ke/images/logo1.png/images/logo1.png https://com21.co.ke/images/logo1.png — 200 — 9.9 KiB — 444 ms — h2https://com21.co.ke/images/home1.jpg/images/home1.jpg https://com21.co.ke/images/home1.jpg — 200 — 822.2 KiB — 1.4 s — h2https://com21.co.ke/images/home2.jpg/images/home2.jpg https://com21.co.ke/images/home2.jpg — 200 — 653.6 KiB — 1.4 s — h2https://com21.co.ke/images/home10a.jpg/images/home10a.jpg https://com21.co.ke/images/home10a.jpg — 200 — 359.3 KiB — 1.2 s — h2https://com21.co.ke/js/jquery-3.3.1.min.js/js/jquery-3.3.1.min.js https://com21.co.ke/js/jquery-3.3.1.min.js — 200 — 29.0 KiB — 447 ms — h2https://com21.co.ke/js/plugins-jquery.js/js/plugins-jquery.js https://com21.co.ke/js/plugins-jquery.js — 200 — 115.2 KiB — 1.0 s — h2https://com21.co.ke/revolution/js/jquery.themepunch.tools.min.js/revolution/js/jquery.themepunch.to... https://com21.co.ke/revolution/js/jquery.themepunch.tools.min.js — 200 — 36.3 KiB — 692 ms — h2https://com21.co.ke/revolution/js/jquery.themepunch.revolution.min.js/revolution/js/jquery.themepunch.re... https://com21.co.ke/revolution/js/jquery.themepunch.revolution.min.js — 200 — 16.9 KiB — 852 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.actions.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.actions.min.js — 200 — 2.4 KiB — 677 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.carousel.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.carousel.min.js — 200 — 2.4 KiB — 903 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.kenburn.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.kenburn.min.js — 200 — 1.4 KiB — 680 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.layeranimation.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.layeranimation.min.js — 200 — 13.5 KiB — 903 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.migration.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.migration.min.js — 200 — 6.5 KiB — 902 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.navigation.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.navigation.min.js — 200 — 6.6 KiB — 683 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.parallax.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.parallax.min.js — 200 — 3.0 KiB — 903 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.slideanims.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.slideanims.min.js — 200 — 6.5 KiB — 903 ms — h2https://com21.co.ke/revolution/js/extensions/revolution.extension.video.min.js/revolution/js/extensions/revolutio... https://com21.co.ke/revolution/js/extensions/revolution.extension.video.min.js — 200 — 6.1 KiB — 869 ms — h2https://com21.co.ke/revolution/js/revolution-custom.js/revolution/js/revolution-custom.js https://com21.co.ke/revolution/js/revolution-custom.js — 200 — 1.9 KiB — 685 ms — h2https://com21.co.ke/js/custom.js/js/custom.js https://com21.co.ke/js/custom.js — 200 — 9.1 KiB — 689 ms — 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
11% of JavaScript execution is third-party
First-party Third-party 380ms · 157KB · KSh150/mo
Google Tag Manager
Tag Manager
Costly
Execution 380ms
Transfer 157 KB
Unused 44%
Monthly Cost KSh150/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 380ms and costs ~KSh150/month

Google Tag Manager takes 380ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

Image Optimization
89 images, 2453 KB total, 172 KB wasted
INFO

Image Optimization Audit

Total Images

89

Total Size

2453 KB

Oversized

1

Wasted

172 KB

1 missing alt text 89 missing dimensions 88 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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