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
Page Weight Budget
Action
2.0 MB transferred, 88 requests
REVIEW
2.0 MB transferred, 88 requests
Info::
i
Page weighs 6.2 MB (2.0 MB transferred)
Warning::
!
JavaScript is 1.0 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.0 MB
Info::
i
88 HTTP requests
Info::
i
Estimated 0.42 g CO2 per page load
2.0 MBtransferred
88 requests
0.42 g CO2 per page load
JavaScript1.0 MiB52%
Images427.4 KiB21%
Other311.5 KiB15%
Fonts133.8 KiB7%
HTML84.1 KiB4%
CSS17.5 KiB1%
Other3.4 KiB0%
Other1.0 KiB0%
Other381 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
B
Image Optimization
17 images, 0 KB saveable
REVIEW
17 images, 0 KB saveable
Warning::
!
is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
17images427 KB
0oversized-0 KB
6legacy format
1missing dimensionsCLS risk
Set explicit width and height to prevent CLS.
Why this matters
Performance issues directly impact user engagement and conversion rates.
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
5 fonts (134 KB)
PASS
5 fonts (134 KB)
Info::
i
5 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
5
134 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
lwoff2swap
Size22 KB
Load time22 ms
Start1.4 s
RiskFOUT — text flashes from fallback to web font
tiempos-headline-medium...woff2swap
Size37 KB
Load time6 ms
Start1.4 s
RiskFOUT — text flashes from fallback to web font
lwoff2swap
Size20 KB
Load time29 ms
Start1.4 s
RiskFOUT — text flashes from fallback to web font
lwoff2swap
Size21 KB
Load time35 ms
Start1.4 s
RiskFOUT — text flashes from fallback to web font
lwoff2swap
Size34 KB
Load time30 ms
Start1.4 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)
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
19 hints, 0 missing preconnects
PASS
19 hints, 0 missing preconnects
Info::
✓
Page uses 19 resource hint(s)
Current Resource Hints
preconnect
1
preload
6
dns-prefetch
+2
12
prefetch—
19 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
88 requests over 2263ms
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-party4046ms · 919KB · $70/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
OneTrust
cdn.cookielaw.org
Consent
643ms
124 KB
47%
$11/mo
Essential
Unattributable
Unattributable
Other
640ms
0 KB
—
$11/mo
Costly
www.indiewire.com
www.indiewire.com
Other
623ms
84 KB
—
$11/mo
Costly
OneTrust
cdn.cookielaw.org
Consent
525ms
18 KB
—
$9/mo
Essential
www.indiewire.com
www.indiewire.com
Other
469ms
31 KB
—
$8/mo
Costly
ads.blogherads.com
ads.blogherads.com
Other
299ms
132 KB
80%
$5/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
177ms
153 KB
41%
$3/mo
Optional
cds.connatix.com
cds.connatix.com
Other
136ms
139 KB
68%
$2/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
126ms
129 KB
50%
$2/mo
Optional
html-load.com
html-load.com
Other
112ms
43 KB
—
$2/mo
Optional
www.indiewire.com
www.indiewire.com
Other
106ms
21 KB
—
$2/mo
Optional
pagead2.googlesyndication.com
pagead2.googlesyndication.com
Other
70ms
0 KB
65%
$1/mo
Optional
phoneresult.com
phoneresult.com
Other
61ms
36 KB
—
$1/mo
Optional
OneTrust
cdn.cookielaw.org
Consent
60ms
9 KB
—
$1/mo
Essential
OneTrust
Consent
Essential
Execution643ms
Transfer124 KB
Unused47%
Monthly Cost$11/mo
Unattributable
Other
Costly
Execution640ms
Transfer0 KB
Monthly Cost$11/mo
www.indiewire.com
Other
Costly
Execution623ms
Transfer84 KB
Monthly Cost$11/mo
OneTrust
Consent
Essential
Execution525ms
Transfer18 KB
Monthly Cost$9/mo
www.indiewire.com
Other
Costly
Execution469ms
Transfer31 KB
Monthly Cost$8/mo
ads.blogherads.com
Other
Costly
Execution299ms
Transfer132 KB
Unused80%
Monthly Cost$5/mo
Google Tag Manager
Tag Manager
Optional
Execution177ms
Transfer153 KB
Unused41%
Monthly Cost$3/mo
cds.connatix.com
Other
Optional
Execution136ms
Transfer139 KB
Unused68%
Monthly Cost$2/mo
Google Tag Manager
Tag Manager
Optional
Execution126ms
Transfer129 KB
Unused50%
Monthly Cost$2/mo
html-load.com
Other
Optional
Execution112ms
Transfer43 KB
Monthly Cost$2/mo
www.indiewire.com
Other
Optional
Execution106ms
Transfer21 KB
Monthly Cost$2/mo
pagead2.googlesyndication.com
Other
Optional
Execution70ms
Transfer0 KB
Unused65%
Monthly Cost$1/mo
phoneresult.com
Other
Optional
Execution61ms
Transfer36 KB
Monthly Cost$1/mo
OneTrust
Consent
Essential
Execution60ms
Transfer9 KB
Monthly Cost$1/mo
These scripts may cost more than they're worth
Unattributable adds 640ms and costs ~$11/month
www.indiewire.com adds 623ms and costs ~$11/month
www.indiewire.com adds 469ms and costs ~$8/month
ads.blogherads.com adds 299ms and costs ~$5/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 640ms 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.indiewire.com takes 623ms 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.indiewire.com takes 469ms 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
ads.blogherads.com takes 299ms 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
80% of ads.blogherads.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 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.
Source: web.dev
65% of pagead2.googlesyndication.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.