Performance
· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
2.37 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.49 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
540 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.021
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.37 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.
8.49 s
Page Load Progression
DJS Execution CostAction3260ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://pcpclaim-uk.co.uk/ | 1710ms | 76ms | 13ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-2TCKQTQ3ZZ&cx=c>m=4e6562h1 | 433ms | 355ms | 74ms | 3rd |
| Unattributable | 416ms | 10ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KNK35TM | 323ms | 253ms | 67ms | 3rd |
| data:text/javascript;base64,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 | 147ms | 111ms | 1ms | 3rd |
| data:text/javascript;base64,d2luZG93LmFkZEV2ZW50TGlzdGVuZXIoJ0RPTUNvbnRlbnRMb2FkZWQnLGZ1bmN0aW9uKCl7dmFyIG93bE9wdGlvbnM9e2l0ZW1zOjQsZG90czohMCxuYXY6ITEsbWFyZ2luOjIyLHJlc3BvbnNpdmU6ezA6e21hcmdpbjoxNSxpdGVtczoxLHN0YWdlUGFkZGluZzoxMCx9LDU3Njp7aXRlbXM6Mix9LDc2ODp7aXRlbXM6Mix9LDk5Mjp7aXRlbXM6Myx9LDEyMDA6e2l0ZW1zOjQsfX19O2pRdWVyeSgnLm93bC1jYXJvdXNlbCNuZXdzQ2Fyb3VzZWwnKS5vd2xDYXJvdXNlbChvd2xPcHRpb25zKX0p | 97ms | 43ms | 1ms | 3rd |
| https://pcpclaim-uk.co.uk/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 69ms | 53ms | 12ms | 1st |
| https://cdn.mouseflow.com/projects/242d7e04-4250-4fe4-ab39-ea2d4358cad3.js | 64ms | 40ms | 23ms | 3rd |
DHTTP CachingActionno-store (uncacheable)FIX
no-store, no-cache, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| no-store | — | Never cache this response |
| no-cache | — | Cache but always revalidate first |
| must-revalidate | — | Must recheck with server after expiry |
BThird-Party Impact48% third-party, 0 ms blockingREVIEW
BImage Optimization21 images, 0 KB saveableREVIEW
CJS BundlesAction13 scripts, 213 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-2TCKQTQ3ZZ&cx=c>m=4e6562h1 | 175 KB | 70 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KNK35TM | 150 KB | 64 KB (43%) | ✓ | 3rd |
| https://cdn.mouseflow.com/projects/242d7e04-4250-4fe4-ab39-ea2d4358cad3.js | 52 KB | 41 KB (79%) | ✓ | 3rd |
| https://www.clickcease.com/monitor/stat.js | 44 KB | 39 KB (90%) | ✓ | 3rd |
| data:text/javascript;base64,d2luZG93LmFkZEV2ZW50TGlzdGVuZXIoJ0RPTUNvbnRlbnRMb2FkZWQnLGZ1bmN0aW9uKCl… | 0 KB | — | ✓ | 3rd |
| https://pcpclaim-uk.co.uk/wp-content/litespeed/js/c553f27279ce2b2846ae5d0aee4c9ba1.js?ver=c9ba1 | 1 KB | — | ✓ | 1st |
| https://pcpclaim-uk.co.uk/wp-content/litespeed/js/2db579b397df39931296e7a29f916e85.js?ver=16e85 | 14 KB | — | ✓ | 1st |
| data:text/javascript;base64,KGZ1bmN0aW9uKCl7J3VzZSBzdHJpY3QnO3dpbmRvdy5hZGRFdmVudExpc3RlbmVyKCdsb2F… | 0 KB | — | ✓ | 3rd |
| data:text/javascript;base64,d2luZG93LmFkZEV2ZW50TGlzdGVuZXIoJ0RPTUNvbnRlbnRMb2FkZWQnLGZ1bmN0aW9uKCl… | 0 KB | — | ✓ | 3rd |
| data:text/javascript;base64,aWYod2luZG93Lk5vZGVMaXN0JiYhTm9kZUxpc3QucHJvdG90eXBlLmZvckVhY2gpe05vZGV… | 0 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
BResource Hints7 hints, 0 missing preconnectsREVIEW
Current Resource Hints
7 resource hints configured
Fonts are always fetched as crossorigin=anonymous; a preload without the attribute creates a different cache key, so the browser refetches when the actual font request happens. Sample: https://pcpclaim-uk.co.uk/wp-content/themes/pcp-claim/dist/fonts/subset-AvenirLTStd-Heavy.woff2, https://pcpclaim-uk.co.uk/wp-content/themes/pcp-claim/dist/fonts/subset-Avenir-Roman.woff2, https://pcpclaim-uk.co.uk/wp-content/themes/pcp-claim/dist/fonts/subset-Avenir-Oblique.woff2. Add `crossorigin` (or `crossorigin="anonymous"`) to each preload.
Performance issues directly impact user engagement and conversion rates.
The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: https://pcpclaim-uk.co.uk/wp-content/uploads/2022/03/logo.png (preload+preload).
Performance issues directly impact user engagement and conversion rates.
CCompression AlgorithmActionMain response served uncompressedREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
BPage Weight Inventory70 resources · 887 KB · 213 KB savings availableREVIEW
~213.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 70 resources | 887.1 KiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
APage Weight Budget887 KB transferred, 70 requestsPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading12 fonts (108 KB)PASS
Web fonts
12
108 KB total
Render-blocking
0
of 12
Dominant font-display
swap
Most common across fonts
Font loading timeline
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+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-store -- correct for sensitive/dynamic contentPASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
Network Waterfall70 requests over 2894msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 433ms | 175 KB | 40% | £6/mo | Costly |
Unattributable Unattributable | Other | 416ms | 0 KB | — | £6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 323ms | 150 KB | 43% | £5/mo | Costly |
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cdn.mouseflow.com cdn.mouseflow.com | Other | 64ms | 52 KB | 79% | £1/mo | Optional |
These scripts may cost more than they're worth
- Google Tag Manager adds 433ms and costs ~£6/month
- Unattributable adds 416ms and costs ~£6/month
- Google Tag Manager adds 323ms and costs ~£5/month
45% of JavaScript execution time comes from third-party scripts.
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾ ▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
Google Tag Manager takes 433ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Unattributable takes 416ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 323ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
79% of cdn.mouseflow.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-04-12 — 2026-05-09)
LCP (p75)
1075 ms
92% good
INP (p75)
0 ms
0% good
CLS (p75)
0.000
98% good
FCP (p75)
842 ms
TTFB (p75)
435 ms
Image Optimization26 images, 1 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
26
Total Size
1 KB