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Performance

· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
2
REVIEW
3
PASS
14
INFO
4

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

Mobile Desktop
66
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
73
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
73
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

947 ms

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

3.82 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.

0.210

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

1.75 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.

3.82 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
23
14 PASS 3 REVIEW 2 FIX
F
Page Weight Budget
Action
4.8 MB transferred, 75 requests
FIX
4.8 MB transferred, 75 requests
Critical::
Page weighs 7.6 MB (4.8 MB transferred)
Warning::
Images are 3.3 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 3.3 MB
Warning::
JavaScript is 764 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 764 KB
Info::
Fonts are 479 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 479 KB
Info::
75 HTTP requests
Info::
Estimated 1.0 g CO2 per page load
4.8 MB / 2.4 MB budget
4.8 MB transferred
75 requests
1.0 g CO2 per page load
Images 3.3 MiB 69%
JavaScript 764.2 KiB 16%
Fonts 479.3 KiB 10%
Other 138.4 KiB 3%
CSS 134.8 KiB 3%
HTML 8.9 KiB 0%
Other 562 B 0%
Other 46 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

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

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

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-store, no-cache, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-store, no-cache, must-revalidate

DirectiveValueMeaning
no-store—Never cache this response
no-cache—Cache but always revalidate first
must-revalidate—Must recheck with server after expiry
B
JS Bundles
27 scripts, 106 KB unused
REVIEW
27 scripts, 106 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-FH3N...: 74 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.vipdrainageserviceslondon.co.uk/assets...: 31 KB unused (84%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 106 KB
106 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-FH3NFPL6JP178 KB74 KB (42%)✓3rd
https://www.vipdrainageserviceslondon.co.uk/assets/vendor/swiper/swiper-bundle.min.js37 KB31 KB (84%)✓1st
https://www.vipdrainageserviceslondon.co.uk/assets/js/main.js2 KB—✓1st
https://maps.googleapis.com/maps-api-v3/api/js/66/12d/places_impl.js4 KB—✓3rd
https://www.vipdrainageserviceslondon.co.uk/assets/vendor/glightbox/js/glightbox.min.js14 KB—✓1st
https://www.vipdrainageserviceslondon.co.uk/assets/vendor/aos/aos.js5 KB—✓1st
https://www.vipdrainageserviceslondon.co.uk/assets/vendor/php-email-form/validate.js1 KB—✓1st
https://www.vipdrainageserviceslondon.co.uk/assets/popup-video/jquery.magnific-popup.js12 KB—✗1st
https://www.vipdrainageserviceslondon.co.uk/assets/popup/script.js0 KB—✓1st
https://www.vipdrainageserviceslondon.co.uk/assets/js/owl.carousel.min.js11 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
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
75 resources · 4.8 MB · 106 KB savings available
REVIEW
75 resources · 4.8 MB · 106 KB savings available
Warning::
Page weight 4.8 MB exceeds 1 MB target by 3.8 MB
Got: 4.8 MB Expected: ≤ 1 MB
Info::
~106 KB of savings available
Info::
30 third-party resources (15% of weight)
Info::
6 resources over 200KB
75 resources · 4.8 MiB · 30 third-party 3.8 MiB over 1MB target
Image 72% · 3.4 MiB
JavaScript 16% · 764.2 KiB
Font 10% · 479.3 KiB
CSS 3% · 134.8 KiB
Document 0% · 8.9 KiB
Other 0% · 608 B

~105.6 KiB of savings available

Remove unused JavaScript: 105.6 KiB
A+
Third-Party Impact
15% third-party, 0 ms blocking
PASS
15% third-party, 0 ms blocking
Info::
Third-party code accounts for 15% of page weight (752.2 KiB of 4.8 MiB)
Info::
Third-party blocking time is low (0 ms)
85%
15%
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
Image Optimization
11 images, 0 KB saveable
PASS
11 images, 0 KB saveable
Warning::
https://www.vipdrainageserviceslondon.co.uk/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.vipdrainageserviceslondon.co.uk/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.vipdrainageserviceslondon.co.uk/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.vipdrainageserviceslondon.co.uk/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.vipdrainageserviceslondon.co.uk/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.vipdrainageserviceslondon.co.uk/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.vipdrainageserviceslondon.co.uk/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.vipdrainageserviceslondon.co.uk/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.vipdrainageserviceslondon.co.uk/assets... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
11 images 3.3 MB
0 oversized -0 KB
0 legacy format
9 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

A+
JS Execution Cost
316ms total JS execution
PASS
316ms total JS execution
Info::
https://www.vipdrainageserviceslondon.co.uk/domest...: 124ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-FH3N...: 74ms CPU time
Info::
Unattributable: 67ms CPU time
Info::
https://www.vipdrainageserviceslondon.co.uk/assets...: 52ms CPU time
Info::
Third-party scripts: 74ms (23% of total)

Main Thread Breakdown

Script Evaluation 34% Other 25% Style & Layout 22% Parse HTML & CSS 8% Script Parsing & Compilation 7% Rendering 5%
ScriptTotalScriptingParse/CompileParty
https://www.vipdrainageserviceslondon.co.uk/domestic-high-pressure-water-jetting124ms1ms1ms1st
https://www.googletagmanager.com/gtag/js?id=G-FH3NFPL6JP74ms63ms10ms3rd
Unattributable67ms2ms0ms1st
https://www.vipdrainageserviceslondon.co.uk/assets/vendor/jquery/jquery.min.js52ms41ms4ms1st
A+
Font Loading
9 fonts (479 KB)
PASS
9 fonts (479 KB)
Info::
9 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

9

479 KB total

Render-blocking

0

of 9

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 4.0 s FCP 947 ms LCP 3.8 shttps://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 36.7 KiB — 92 ms — font-display: swaphttps://www.vipdrainageserviceslondon.co.uk/assets/vendor/fontawesome-free/webfonts/fa-brands-400.woff2fa-brands-400.woff2 https://www.vipdrainageserviceslondon.co.uk/assets/vendor/fontawesome-free/webfonts/fa-brands-400.woff2 — 105.6 KiB — 154 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLEj6Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLEj6Z1x... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLEj6Z1xlFd2JQEk.woff2 — 7.8 KiB — 57 ms — font-display: swaphttps://www.vipdrainageserviceslondon.co.uk/assets/vendor/fontawesome-free/webfonts/fa-solid-900.woff2fa-solid-900.woff2 https://www.vipdrainageserviceslondon.co.uk/assets/vendor/fontawesome-free/webfonts/fa-solid-900.woff2 — 146.7 KiB — 188 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2pxiEyp8kv8JHgFVrJJfecnF... https://fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2 — 7.7 KiB — 87 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLDD4Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLDD4Z1x... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLDD4Z1xlFd2JQEk.woff2 — 7.7 KiB — 79 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLDz8Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLDz8Z1x... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLDz8Z1xlFd2JQEk.woff2 — 7.7 KiB — 81 ms — font-display: swaphttps://www.vipdrainageserviceslondon.co.uk/assets/vendor/bootstrap-icons/fonts/bootstrap-icons.woff2?1fa40e8900654d2863d011707b9fb6f2bootstrap-icons.woff2 https://www.vipdrainageserviceslondon.co.uk/assets/vendor/bootstrap-icons/fonts/bootstrap-icons.woff2?1fa40e8900654d2863d011707b9fb6f2 — 118.6 KiB — 184 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v51/KFO5CnqEu92Fr1Mu53ZEC9_Vu3r1gIhOszmkBnkaSTbQWg.woff2KFO5CnqEu92Fr1Mu53ZEC9_... https://fonts.gstatic.com/s/roboto/v51/KFO5CnqEu92Fr1Mu53ZEC9_Vu3r1gIhOszmkBnkaSTbQWg.woff2 — 40.8 KiB — 100 ms — font-display: swap
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 37 KB
Load time 92 ms
Start 541 ms
Risk FOUT — text flashes from fallback to web font
fa-brands-400.woff2 woff2 swap
Size 106 KB
Load time 154 ms
Start 541 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
pxiByp8kv8JHgFVrLEj6Z1x... woff2 swap
Size 8 KB
Load time 57 ms
Start 541 ms
Risk FOUT — text flashes from fallback to web font
fa-solid-900.woff2 woff2 swap
Size 147 KB
Load time 188 ms
Start 541 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
pxiEyp8kv8JHgFVrJJfecnF... woff2 swap
Size 8 KB
Load time 87 ms
Start 542 ms
Risk FOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLDD4Z1x... woff2 swap
Size 8 KB
Load time 79 ms
Start 542 ms
Risk FOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLDz8Z1x... woff2 swap
Size 8 KB
Load time 81 ms
Start 542 ms
Risk FOUT — text flashes from fallback to web font
bootstrap-icons.woff2 woff2 swap
Size 119 KB
Load time 184 ms
Start 542 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
KFO5CnqEu92Fr1Mu53ZEC9_... woff2 swap
Size 41 KB
Load time 100 ms
Start 543 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)

Fixing the unchecked items could save ~185 KB and ~370 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+
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-store, no-cache, 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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Hetzner Online GmbH

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
75 requests over 1239ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 947 ms LCP 3.8 shttps://www.vipdrainageserviceslondon.co.uk/domestic-high-pressure-water-jetting/domestic-high-pressure-water-jetti... https://www.vipdrainageserviceslondon.co.uk/domestic-high-pressure-water-jetting — 200 — 7.5 KiB — 206 ms — h2https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400..900;1,400..900&family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&family=Roboto:ital,wght@0,100..900;1,100..900&display=swapfonts.googleapis.com/css2?family=Pl... https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400..900;1,400..900&family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&family=Roboto:ital,wght@0,100..900;1,100..900&display=swap — 200 — 3.0 KiB — 157 ms — h2https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.2/css/all.min.csscdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.2/css/all.min.css — 200 — 18.4 KiB — 56 ms — h3https://www.vipdrainageserviceslondon.co.uk/assets/vendor/fontawesome-free/css/all.min.css/assets/vendor/fontawesome-free/css... https://www.vipdrainageserviceslondon.co.uk/assets/vendor/fontawesome-free/css/all.min.css — 200 — 21.4 KiB — 134 ms — h2https://www.vipdrainageserviceslondon.co.uk/assets/vendor/animate.css/animate.min.css/assets/vendor/animate.css/animate.... https://www.vipdrainageserviceslondon.co.uk/assets/vendor/animate.css/animate.min.css — 200 — 4.7 KiB — 207 ms — h2https://www.vipdrainageserviceslondon.co.uk/assets/vendor/aos/aos.css/assets/vendor/aos/aos.css https://www.vipdrainageserviceslondon.co.uk/assets/vendor/aos/aos.css — 200 — 1.7 KiB — 133 ms — h2https://www.vipdrainageserviceslondon.co.uk/assets/vendor/bootstrap/css/bootstrap.min.css/assets/vendor/bootstrap/css/bootst... https://www.vipdrainageserviceslondon.co.uk/assets/vendor/bootstrap/css/bootstrap.min.css — 200 — 27.7 KiB — 134 ms — h2https://www.vipdrainageserviceslondon.co.uk/assets/vendor/bootstrap-icons/bootstrap-icons.css/assets/vendor/bootstrap-icons/boot... https://www.vipdrainageserviceslondon.co.uk/assets/vendor/bootstrap-icons/bootstrap-icons.css — 200 — 11.8 KiB — 206 ms — h2https://www.vipdrainageserviceslondon.co.uk/assets/vendor/boxicons/css/boxicons.min.css/assets/vendor/boxicons/css/boxicon... https://www.vipdrainageserviceslondon.co.uk/assets/vendor/boxicons/css/boxicons.min.css — 200 — 11.0 KiB — 205 ms — h2https://www.vipdrainageserviceslondon.co.uk/assets/vendor/glightbox/css/glightbox.min.css/assets/vendor/glightbox/css/glight... https://www.vipdrainageserviceslondon.co.uk/assets/vendor/glightbox/css/glightbox.min.css — 200 — 2.4 KiB — 133 ms — h2https://www.vipdrainageserviceslondon.co.uk/assets/vendor/swiper/swiper-bundle.min.css/assets/vendor/swiper/swiper-bundle... https://www.vipdrainageserviceslondon.co.uk/assets/vendor/swiper/swiper-bundle.min.css — 200 — 4.2 KiB — 193 ms — h2https://www.vipdrainageserviceslondon.co.uk/assets/css/owl.carousel.min.css/assets/css/owl.carousel.min.css https://www.vipdrainageserviceslondon.co.uk/assets/css/owl.carousel.min.css — 200 — 970 B — 194 ms — h2https://www.vipdrainageserviceslondon.co.uk/assets/css/owl.theme.default.css/assets/css/owl.theme.default.css https://www.vipdrainageserviceslondon.co.uk/assets/css/owl.theme.default.css — 200 — 496 B — 199 ms — h2https://www.vipdrainageserviceslondon.co.uk/assets/popup/style.css/assets/popup/style.css https://www.vipdrainageserviceslondon.co.uk/assets/popup/style.css — 200 — 2.4 KiB — 201 ms — h2https://www.vipdrainageserviceslondon.co.uk/assets/css/scrollbar.css/assets/css/scrollbar.css 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h3https://maps.googleapis.com/maps-api-v3/api/js/66/12d/places.jsmaps.googleapis.com/maps-api-v3/api... https://maps.googleapis.com/maps-api-v3/api/js/66/12d/places.js — 200 — 96.9 KiB — 60 ms — h3data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20fill%3D%22none%22%20viewBo…data:image/svg+xml,%3Csvg%20xmlns%3... data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20fill%3D%22none%22%20viewBo… — 200 — 0 B — 0 ms — datahttps://maps.googleapis.com/maps-api-v3/api/js/66/12d/onion.jsmaps.googleapis.com/maps-api-v3/api... https://maps.googleapis.com/maps-api-v3/api/js/66/12d/onion.js — 200 — 9.3 KiB — 34 ms — h3https://maps.googleapis.com/maps-api-v3/api/js/66/12d/search_impl.jsmaps.googleapis.com/maps-api-v3/api... https://maps.googleapis.com/maps-api-v3/api/js/66/12d/search_impl.js — 200 — 1.3 KiB — 35 ms — h3https://www.vipdrainageserviceslondon.co.uk/assets/img/favicon.webp/assets/img/favicon.webp 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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
23% of JavaScript execution is third-party
First-party Third-party 74ms · 178KB · £1/mo
Google Tag Manager
Tag Manager
Optional
Execution 74ms
Transfer 178 KB
Unused 42%
Monthly Cost £1/mo

How third-party costs are calculated

Image Optimization
13 images, 3593 KB total, 1254 KB wasted
INFO

Image Optimization Audit

Total Images

13

Total Size

3593 KB

Oversized

2

Wasted

1254 KB

13 missing dimensions 9 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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