Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
no-cache, no-store, max-age=0, must-revalidate
Directive
Value
Meaning
no-cache
—
Cache but always revalidate first
no-store
—
Never cache this response
max-age
0
Cache for 0 seconds
must-revalidate
—
Must recheck with server after expiry
C
Page Weight Budget
Action
1.9 MB transferred, 108 requests
REVIEW
1.9 MB transferred, 108 requests
Info::
i
Page weighs 5.3 MB (1.9 MB transferred)
Warning::
!
JavaScript is 1.3 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.3 MB
Info::
i
Fonts are 209 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 209 KB
Warning::
!
108 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
i
Estimated 0.39 g CO2 per page load
1.9 MBtransferred
108 requests
0.39 g CO2 per page load
JavaScript1.3 MiB71%
Fonts209.3 KiB11%
Images155.8 KiB8%
Other71.6 KiB4%
HTML59.4 KiB3%
CSS50.7 KiB3%
Other8.5 KiB0%
Other369 B0%
Other0 B0%
02.4 MB4.9 MB
Approaching limit
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
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
B
Image Optimization
26 images, 0 KB saveable
REVIEW
26 images, 0 KB saveable
Info::
✓
All images are well-optimized
26images156 KB
0oversized-0 KB
21legacy format
0missing dimensionsCLS risk
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
4 fonts (209 KB)
PASS
4 fonts (209 KB)
Info::
i
4 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
4
209 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
Rubik-Regular.Br1IBUhF.ttfttfswap
Size58 KB
Load time92 ms
Start753 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
Rubik-Medium.Bcah308c.ttfttfswap
Size59 KB
Load time22 ms
Start946 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
Rubik-Bold.DkFUAGWi.ttfttfswap
Size59 KB
Load time26 ms
Start947 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
KFO7CnqEu92Fr1ME7kSn66a...woff2swap
Size34 KB
Load time23 ms
Start2.3 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 ~53 KB and ~106 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
1 hints, 0 missing preconnects
PASS
1 hints, 0 missing preconnects
Info::
✓
Page uses 1 resource hint(s)
Current Resource Hints
preconnect—
preload—
dns-prefetch—
prefetch
1
1 resource hints configured
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
108 requests over 3045ms
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-party4602ms · 210KB · £48/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
Unattributable
Unattributable
Other
1491ms
0 KB
—
£15/mo
Costly
www.gstatic.com
www.gstatic.com
Other
1109ms
0 KB
49%
£12/mo
Costly
get.it.com
get.it.com
Other
990ms
30 KB
—
£10/mo
Costly
get.it.com
get.it.com
Other
446ms
1 KB
—
£5/mo
Costly
cdn.termsfeedtag.com
cdn.termsfeedtag.com
Other
285ms
4 KB
—
£3/mo
Costly
get.it.com
get.it.com
Other
280ms
174 KB
46%
£3/mo
Costly
Unattributable
Other
Costly
Execution1491ms
Transfer0 KB
Monthly Cost£15/mo
www.gstatic.com
Other
Costly
Execution1109ms
Transfer0 KB
Unused49%
Monthly Cost£12/mo
get.it.com
Other
Costly
Execution990ms
Transfer30 KB
Monthly Cost£10/mo
get.it.com
Other
Costly
Execution446ms
Transfer1 KB
Monthly Cost£5/mo
cdn.termsfeedtag.com
Other
Costly
Execution285ms
Transfer4 KB
Monthly Cost£3/mo
get.it.com
Other
Costly
Execution280ms
Transfer174 KB
Unused46%
Monthly Cost£3/mo
These scripts may cost more than they're worth
Unattributable adds 1491ms and costs ~£15/month
www.gstatic.com adds 1109ms and costs ~£12/month
get.it.com adds 990ms and costs ~£10/month
get.it.com adds 446ms and costs ~£5/month
cdn.termsfeedtag.com adds 285ms and costs ~£3/month
get.it.com adds 280ms 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
Unattributable takes 1491ms 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.gstatic.com takes 1109ms 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
get.it.com takes 990ms 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
get.it.com takes 446ms 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
cdn.termsfeedtag.com takes 285ms 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
get.it.com takes 280ms 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.