Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
C
Image Optimization
Action
40 images, 0 KB saveable
REVIEW
40 images, 0 KB saveable
Warning::
!
https://scripts.dailymail.co.uk/static/mol-fe/stat... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://i.dailymail.com/i/pix/2026/03/30/IsaInvest... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
40images439 KB
0oversized-0 KB
19legacy format
2missing dimensionsCLS 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
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW
Green Hosting
No green hosting detected
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
6 fonts (185 KB)
PASS
6 fonts (185 KB)
Info::
i
6 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
6
185 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
UcC73FwrK3iLTeHuS_nVMrM...woff2swap
Size47 KB
Load time48 ms
Start1.2 s
RiskFOUT — text flashes from fallback to web font
woff;base64,d09GRgABAAA...woffswap
Size44 KB
Load time48 ms
Start1.5 s
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
woff;base64,d09GRgABAAA...woffswap
Size41 KB
Load time50 ms
Start1.5 s
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
IBMPlexSans-Regular-Lat...woff2swap
Size17 KB
Load time55 ms
Start1.9 s
RiskFOUT — text flashes from fallback to web font
IBMPlexSans-Medium-Lati...woff2swap
Size17 KB
Load time25 ms
Start2.1 s
RiskFOUT — text flashes from fallback to web font
IBMPlexSans-SemiBold-La...woff2swap
Size18 KB
Load time22 ms
Start2.1 s
RiskFOUT — 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 ~26 KB and ~52 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+
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
Network Waterfall
110 requests over 2787ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100%of JavaScript execution is third-party
First-party Third-party5901ms · 2025KB · £61/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.thisismoney.co.uk
www.thisismoney.co.uk
Other
1273ms
196 KB
—
£13/mo
Costly
www.thisismoney.co.uk
www.thisismoney.co.uk
Other
954ms
161 KB
21%
£10/mo
Costly
Unattributable
Unattributable
Other
834ms
0 KB
—
£9/mo
Costly
scripts.dailymail.com
scripts.dailymail.com
Other
718ms
671 KB
89%
£7/mo
Costly
s.go-mpulse.net
s.go-mpulse.net
Other
523ms
60 KB
69%
£5/mo
Costly
scripts.webcontentassessor.com
scripts.webcontentassessor.com
Other
315ms
122 KB
—
£3/mo
Costly
scripts.dailymail.com
scripts.dailymail.com
Other
296ms
165 KB
66%
£3/mo
Costly
www.dailymail.co.uk
www.dailymail.co.uk
Other
178ms
0 KB
—
£2/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
164ms
161 KB
39%
£2/mo
Optional
scripts.dailymail.co.uk
scripts.dailymail.co.uk
Other
144ms
108 KB
53%
£1/mo
Optional
cdn.sophi.io
cdn.sophi.io
Other
125ms
39 KB
—
£1/mo
Optional
scripts.dailymail.com
scripts.dailymail.com
Other
123ms
139 KB
74%
£1/mo
Optional
imasdk.googleapis.com
imasdk.googleapis.com
Other
122ms
147 KB
73%
£1/mo
Optional
scripts.dailymail.com
scripts.dailymail.com
Other
78ms
19 KB
—
£1/mo
Optional
cmp.dmgmediaprivacy.co.uk
cmp.dmgmediaprivacy.co.uk
Other
54ms
38 KB
—
£1/mo
Optional
www.thisismoney.co.uk
Other
Costly
Execution1273ms
Transfer196 KB
Monthly Cost£13/mo
www.thisismoney.co.uk
Other
Costly
Execution954ms
Transfer161 KB
Unused21%
Monthly Cost£10/mo
Unattributable
Other
Costly
Execution834ms
Transfer0 KB
Monthly Cost£9/mo
scripts.dailymail.com
Other
Costly
Execution718ms
Transfer671 KB
Unused89%
Monthly Cost£7/mo
s.go-mpulse.net
Other
Costly
Execution523ms
Transfer60 KB
Unused69%
Monthly Cost£5/mo
scripts.webcontentassessor.com
Other
Costly
Execution315ms
Transfer122 KB
Monthly Cost£3/mo
scripts.dailymail.com
Other
Costly
Execution296ms
Transfer165 KB
Unused66%
Monthly Cost£3/mo
www.dailymail.co.uk
Other
Optional
Execution178ms
Transfer0 KB
Monthly Cost£2/mo
Google Tag Manager
Tag Manager
Optional
Execution164ms
Transfer161 KB
Unused39%
Monthly Cost£2/mo
scripts.dailymail.co.uk
Other
Optional
Execution144ms
Transfer108 KB
Unused53%
Monthly Cost£1/mo
cdn.sophi.io
Other
Optional
Execution125ms
Transfer39 KB
Monthly Cost£1/mo
scripts.dailymail.com
Other
Optional
Execution123ms
Transfer139 KB
Unused74%
Monthly Cost£1/mo
imasdk.googleapis.com
Other
Optional
Execution122ms
Transfer147 KB
Unused73%
Monthly Cost£1/mo
scripts.dailymail.com
Other
Optional
Execution78ms
Transfer19 KB
Monthly Cost£1/mo
cmp.dmgmediaprivacy.co.uk
Other
Optional
Execution54ms
Transfer38 KB
Monthly Cost£1/mo
These scripts may cost more than they're worth
www.thisismoney.co.uk adds 1273ms and costs ~£13/month
www.thisismoney.co.uk adds 954ms and costs ~£10/month
Unattributable adds 834ms and costs ~£9/month
scripts.dailymail.com adds 718ms and costs ~£7/month
s.go-mpulse.net adds 523ms and costs ~£5/month
scripts.webcontentassessor.com adds 315ms and costs ~£3/month
scripts.dailymail.com adds 296ms and costs ~£3/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
Why this matters
When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.
Learn more ▾▴
Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.
Source: web.dev
www.thisismoney.co.uk takes 1273ms 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
www.thisismoney.co.uk takes 954ms 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
Unattributable takes 834ms 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
scripts.dailymail.com takes 718ms 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
89% of scripts.dailymail.com's code is unused. The script may be loading features you don't use.
Why this matters
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
s.go-mpulse.net takes 523ms 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
69% of s.go-mpulse.net's code is unused. The script may be loading features you don't use.
Why this matters
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
scripts.webcontentassessor.com takes 315ms 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
scripts.dailymail.com takes 296ms 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
66% of scripts.dailymail.com's code is unused. The script may be loading features you don't use.
Why this matters
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
53% of scripts.dailymail.co.uk's code is unused. The script may be loading features you don't use.
Why this matters
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
74% of scripts.dailymail.com's code is unused. The script may be loading features you don't use.
Why this matters
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
73% of imasdk.googleapis.com's code is unused. The script may be loading features you don't use.
Why this matters
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.