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
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
Image Optimization
13 images, 0 KB saveable
PASS
13 images, 0 KB saveable
Info::
✓
All images are well-optimized
13images466 KB
0oversized-0 KB
3legacy format
0missing dimensionsCLS risk
A+
Font Loading
11 fonts (214 KB)
PASS
11 fonts (214 KB)
Info::
i
11 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
11
214 KB total
Render-blocking
0
of 11
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
icomoon.woffwoffswap
Size10 KB
Load time20 ms
Start432 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
lwoff2swap
Size28 KB
Load time26 ms
Start432 ms
RiskFOUT — text flashes from fallback to web font
lwoff2swap
Size27 KB
Load time40 ms
Start433 ms
RiskFOUT — text flashes from fallback to web font
lwoff2swap
Size37 KB
Load time32 ms
Start433 ms
RiskFOUT — text flashes from fallback to web font
lwoff2swap
Size37 KB
Load time34 ms
Start433 ms
RiskFOUT — text flashes from fallback to web font
lwoff2swap
Size39 KB
Load time44 ms
Start434 ms
RiskFOUT — text flashes from fallback to web font
gform-icons-theme.woff2woff2swap
Size3 KB
Load time13 ms
Start434 ms
RiskFOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a...woff2swap
Size34 KB
Load time21 ms
Start2.7 s
RiskFOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a...woff2swap
Size0 KB
Load time2 ms
Start2.8 s
RiskFOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a...woff2swap
Size0 KB
Load time0 ms
Start2.8 s
RiskFOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a...woff2swap
Size0 KB
Load time0 ms
Start2.9 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 ~3 KB and ~6 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
4 hints, 0 missing preconnects
PASS
4 hints, 0 missing preconnects
Info::
✓
Page uses 4 resource hint(s)
Current Resource Hints
preconnect—
preload—
dns-prefetch
4
prefetch—
4 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
112 requests over 4713ms
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-party14396ms · 1050KB · €156/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.gstatic.com
www.gstatic.com
Other
4496ms
0 KB
43%
€49/mo
Costly
www.americanprogress.org
www.americanprogress.org
Other
2119ms
49 KB
—
€23/mo
Costly
cmp.osano.com
cmp.osano.com
Other
1451ms
44 KB
—
€16/mo
Costly
Unattributable
Unattributable
Other
1132ms
0 KB
—
€12/mo
Costly
www.americanprogress.org
www.americanprogress.org
Other
981ms
117 KB
61%
€11/mo
Costly
www.americanprogress.org
www.americanprogress.org
Other
880ms
29 KB
—
€10/mo
Costly
HubSpot Analytics
js.hs-analytics.net
Analytics
687ms
42 KB
—
€7/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
523ms
166 KB
37%
€6/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
519ms
144 KB
39%
€6/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
475ms
173 KB
42%
€5/mo
Costly
www.americanprogress.org
www.americanprogress.org
Other
307ms
0 KB
—
€3/mo
Costly
www.americanprogress.org
www.americanprogress.org
Other
295ms
35 KB
—
€3/mo
Costly
maps.googleapis.com
maps.googleapis.com
Other
273ms
179 KB
56%
€3/mo
Costly
cmp.osano.com
cmp.osano.com
Other
144ms
28 KB
—
€2/mo
Optional
www.americanprogress.org
www.americanprogress.org
Other
58ms
40 KB
68%
€1/mo
Optional
www.americanprogress.org
www.americanprogress.org
Other
56ms
5 KB
—
€1/mo
Optional
www.gstatic.com
Other
Costly
Execution4496ms
Transfer0 KB
Unused43%
Monthly Cost€49/mo
www.americanprogress.org
Other
Costly
Execution2119ms
Transfer49 KB
Monthly Cost€23/mo
cmp.osano.com
Other
Costly
Execution1451ms
Transfer44 KB
Monthly Cost€16/mo
Unattributable
Other
Costly
Execution1132ms
Transfer0 KB
Monthly Cost€12/mo
www.americanprogress.org
Other
Costly
Execution981ms
Transfer117 KB
Unused61%
Monthly Cost€11/mo
www.americanprogress.org
Other
Costly
Execution880ms
Transfer29 KB
Monthly Cost€10/mo
HubSpot Analytics
Analytics
Costly
Execution687ms
Transfer42 KB
Monthly Cost€7/mo
Google Tag Manager
Tag Manager
Costly
Execution523ms
Transfer166 KB
Unused37%
Monthly Cost€6/mo
Google Tag Manager
Tag Manager
Costly
Execution519ms
Transfer144 KB
Unused39%
Monthly Cost€6/mo
Google Tag Manager
Tag Manager
Costly
Execution475ms
Transfer173 KB
Unused42%
Monthly Cost€5/mo
www.americanprogress.org
Other
Costly
Execution307ms
Transfer0 KB
Monthly Cost€3/mo
www.americanprogress.org
Other
Costly
Execution295ms
Transfer35 KB
Monthly Cost€3/mo
maps.googleapis.com
Other
Costly
Execution273ms
Transfer179 KB
Unused56%
Monthly Cost€3/mo
cmp.osano.com
Other
Optional
Execution144ms
Transfer28 KB
Monthly Cost€2/mo
www.americanprogress.org
Other
Optional
Execution58ms
Transfer40 KB
Unused68%
Monthly Cost€1/mo
www.americanprogress.org
Other
Optional
Execution56ms
Transfer5 KB
Monthly Cost€1/mo
These scripts may cost more than they're worth
www.gstatic.com adds 4496ms and costs ~€49/month
www.americanprogress.org adds 2119ms and costs ~€23/month
cmp.osano.com adds 1451ms and costs ~€16/month
Unattributable adds 1132ms and costs ~€12/month
www.americanprogress.org adds 981ms and costs ~€11/month
www.americanprogress.org adds 880ms and costs ~€10/month
HubSpot Analytics adds 687ms and costs ~€7/month
Google Tag Manager adds 523ms and costs ~€6/month
Google Tag Manager adds 519ms and costs ~€6/month
Google Tag Manager adds 475ms and costs ~€5/month
www.americanprogress.org adds 307ms and costs ~€3/month
www.americanprogress.org adds 295ms and costs ~€3/month
maps.googleapis.com adds 273ms 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.gstatic.com takes 4496ms 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.americanprogress.org takes 2119ms 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
cmp.osano.com takes 1451ms 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 1132ms 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.americanprogress.org takes 981ms 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
61% of www.americanprogress.org'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
www.americanprogress.org takes 880ms 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
HubSpot Analytics takes 687ms 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 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
Google Tag Manager takes 519ms 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 475ms 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.americanprogress.org takes 307ms 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.americanprogress.org takes 295ms 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
maps.googleapis.com takes 273ms 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
56% of maps.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.
Source: web.dev
68% of www.americanprogress.org'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.