Adding a Cache-Control header can significantly improve repeat-visit performance.
C
Image Optimization
Action
53 images, 0 KB saveable
REVIEW
53 images, 0 KB saveable
Warning::
!
https://s3.us-east-1.amazonaws.com/streamdata.dail... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://s3.us-east-1.amazonaws.com/streamdata.dail... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://s3.amazonaws.com/streamdata.dailycaller.co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://s3.amazonaws.com/streamdata.dailycaller.co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://s3.amazonaws.com/streamdata.dailycaller.co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://dailycaller.com/files/images/documentaries... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://dailycaller.com/files/images/documentaries... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://dailycaller.com/files/images/documentaries... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://dailycaller.com/files/images/documentaries... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://s3.amazonaws.com/streamdata.dailycaller.co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://dailycaller.com/files/images/sub-logo-2.sv... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://s3.amazonaws.com/streamdata.dailycaller.co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://s3.amazonaws.com/streamdata.dailycaller.co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://s3.amazonaws.com/streamdata.dailycaller.co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://dailycaller.com/files/images/documentaries... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://dailycaller.com/files/images/privacyoption... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://dailycaller.com/files/images/documentaries... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://s3.amazonaws.com/streamdata.dailycaller.co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://s3.us-east-1.amazonaws.com/streamdata.dail... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://s3.amazonaws.com/streamdata.dailycaller.co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://s3.amazonaws.com/streamdata.dailycaller.co... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
53images19.2 MB
0oversized-0 KB
32legacy format
21missing 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
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
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 (68 KB)
PASS
4 fonts (68 KB)
Info::
i
4 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
4
68 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
TK3iWkUHHAIjg752GT8Gl-1...woff2swap
Size28 KB
Load time24 ms
Start393 ms
RiskFOUT — text flashes from fallback to web font
rnCr-xNNww_2s0amA9M5knj...woff2swap
Size14 KB
Load time26 ms
Start393 ms
RiskFOUT — text flashes from fallback to web font
k3kKo8YQJOpFgHQ1mQ5VkEb...woff2swap
Size12 KB
Load time21 ms
Start393 ms
RiskFOUT — text flashes from fallback to web font
rnCs-xNNww_2s0amA9uetG3...woff2swap
Size14 KB
Load time29 ms
Start393 ms
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)
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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall
140 requests over 3073ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
69%of JavaScript execution is third-party
First-party Third-party1883ms · 867KB · €10/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
cmp.osano.com
cmp.osano.com
Other
549ms
96 KB
26%
€3/mo
Costly
Unattributable
Unattributable
Other
520ms
0 KB
—
€3/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
243ms
151 KB
42%
€1/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
182ms
170 KB
35%
€1/mo
Optional
sdk.mrf.io
sdk.mrf.io
Other
149ms
59 KB
43%
€1/mo
Optional
Stripe
js.stripe.com
Payment
122ms
220 KB
73%
€1/mo
Essential
cdn.rudderlabs.com
cdn.rudderlabs.com
Other
61ms
32 KB
—
€0/mo
Optional
cds.connatix.com
cds.connatix.com
Other
57ms
139 KB
68%
€0/mo
Optional
cmp.osano.com
Other
Costly
Execution549ms
Transfer96 KB
Unused26%
Monthly Cost€3/mo
Unattributable
Other
Costly
Execution520ms
Transfer0 KB
Monthly Cost€3/mo
Google Tag Manager
Tag Manager
Costly
Execution243ms
Transfer151 KB
Unused42%
Monthly Cost€1/mo
Google Tag Manager
Tag Manager
Optional
Execution182ms
Transfer170 KB
Unused35%
Monthly Cost€1/mo
sdk.mrf.io
Other
Optional
Execution149ms
Transfer59 KB
Unused43%
Monthly Cost€1/mo
Stripe
Payment
Essential
Execution122ms
Transfer220 KB
Unused73%
Monthly Cost€1/mo
cdn.rudderlabs.com
Other
Optional
Execution61ms
Transfer32 KB
Monthly Cost€0/mo
cds.connatix.com
Other
Optional
Execution57ms
Transfer139 KB
Unused68%
Monthly Cost€0/mo
These scripts may cost more than they're worth
cmp.osano.com adds 549ms and costs ~€3/month
Unattributable adds 520ms and costs ~€3/month
Google Tag Manager adds 243ms and costs ~€1/month
69% of JavaScript execution time comes from third-party scripts.
Why this matters
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
cmp.osano.com takes 549ms 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 520ms 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
Google Tag Manager takes 243ms 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
73% of Stripe'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
68% of cds.connatix.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.