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, 100 requests
REVIEW
2.0 MB transferred, 100 requests
Info::
i
Page weighs 5.4 MB (2.0 MB transferred)
Warning::
!
JavaScript is 1.2 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.2 MB
Info::
i
Fonts are 430 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 430 KB
Info::
i
100 HTTP requests
Info::
i
Estimated 0.42 g CO2 per page load
2.0 MBtransferred
100 requests
0.42 g CO2 per page load
JavaScript1.2 MiB59%
Fonts430.3 KiB21%
Images153.2 KiB7%
HTML103.3 KiB5%
Other86.9 KiB4%
CSS57.4 KiB3%
Other13.3 KiB1%
Other3.9 KiB0%
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
B
Image Optimization
13 images, 0 KB saveable
REVIEW
13 images, 0 KB saveable
Info::
✓
All images are well-optimized
13images153 KB
0oversized-0 KB
4legacy 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
7 fonts (430 KB)
PASS
7 fonts (430 KB)
Info::
i
7 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
7
430 KB total
Render-blocking
0
of 7
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
Karla-Light.ttfttfswap
Size24 KB
Load time22 ms
Start870 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
Karla-Bold.ttfttfswap
Size11 KB
Load time27 ms
Start870 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
Karla-BoldItalic.ttfttfswap
Size12 KB
Load time28 ms
Start870 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
Karla-LightItalic.ttfttfswap
Size24 KB
Load time30 ms
Start870 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
lwoff2swap
Size116 KB
Load time68 ms
Start1.1 s
RiskFOUT — text flashes from fallback to web font
Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
lwoff2swap
Size119 KB
Load time67 ms
Start1.1 s
RiskFOUT — text flashes from fallback to web font
Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
lwoff2swap
Size124 KB
Load time63 ms
Start1.1 s
RiskFOUT — text flashes from fallback to web font
Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~201 KB and ~402 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
23 hints, 0 missing preconnects
PASS
23 hints, 0 missing preconnects
Info::
✓
Page uses 23 resource hint(s)
Current Resource Hints
preconnect
1
preload
10
dns-prefetch
+2
12
prefetch—
23 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
100 requests over 2096ms
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-party3748ms · 1069KB · $65/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.hollywoodreporter.com
www.hollywoodreporter.com
Other
1442ms
103 KB
—
$25/mo
Costly
Unattributable
Unattributable
Other
500ms
0 KB
—
$9/mo
Costly
cdn.tinypass.com
cdn.tinypass.com
Other
328ms
133 KB
64%
$6/mo
Costly
ads.blogherads.com
ads.blogherads.com
Other
300ms
132 KB
80%
$5/mo
Costly
www.hollywoodreporter.com
www.hollywoodreporter.com
Other
207ms
31 KB
66%
$4/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
203ms
153 KB
43%
$4/mo
Costly
pagead2.googlesyndication.com
pagead2.googlesyndication.com
Other
143ms
0 KB
65%
$2/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
141ms
127 KB
51%
$2/mo
Optional
cds.connatix.com
cds.connatix.com
Other
137ms
139 KB
68%
$2/mo
Optional
html-load.com
html-load.com
Other
116ms
42 KB
—
$2/mo
Optional
www.hollywoodreporter.com
www.hollywoodreporter.com
Other
90ms
18 KB
—
$2/mo
Optional
cloudguppy.com
cloudguppy.com
Other
75ms
36 KB
—
$1/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
67ms
153 KB
70%
$1/mo
Optional
www.hollywoodreporter.com
Other
Costly
Execution1442ms
Transfer103 KB
Monthly Cost$25/mo
Unattributable
Other
Costly
Execution500ms
Transfer0 KB
Monthly Cost$9/mo
cdn.tinypass.com
Other
Costly
Execution328ms
Transfer133 KB
Unused64%
Monthly Cost$6/mo
ads.blogherads.com
Other
Costly
Execution300ms
Transfer132 KB
Unused80%
Monthly Cost$5/mo
www.hollywoodreporter.com
Other
Costly
Execution207ms
Transfer31 KB
Unused66%
Monthly Cost$4/mo
Google Tag Manager
Tag Manager
Costly
Execution203ms
Transfer153 KB
Unused43%
Monthly Cost$4/mo
pagead2.googlesyndication.com
Other
Optional
Execution143ms
Transfer0 KB
Unused65%
Monthly Cost$2/mo
Google Tag Manager
Tag Manager
Optional
Execution141ms
Transfer127 KB
Unused51%
Monthly Cost$2/mo
cds.connatix.com
Other
Optional
Execution137ms
Transfer139 KB
Unused68%
Monthly Cost$2/mo
html-load.com
Other
Optional
Execution116ms
Transfer42 KB
Monthly Cost$2/mo
www.hollywoodreporter.com
Other
Optional
Execution90ms
Transfer18 KB
Monthly Cost$2/mo
cloudguppy.com
Other
Optional
Execution75ms
Transfer36 KB
Monthly Cost$1/mo
Google Tag Manager
Tag Manager
Optional
Execution67ms
Transfer153 KB
Unused70%
Monthly Cost$1/mo
These scripts may cost more than they're worth
www.hollywoodreporter.com adds 1442ms and costs ~$25/month
Unattributable adds 500ms and costs ~$9/month
cdn.tinypass.com adds 328ms and costs ~$6/month
ads.blogherads.com adds 300ms and costs ~$5/month
www.hollywoodreporter.com adds 207ms and costs ~$4/month
Google Tag Manager adds 203ms and costs ~$4/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.hollywoodreporter.com takes 1442ms 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 500ms 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.tinypass.com takes 328ms 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
64% of cdn.tinypass.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
ads.blogherads.com takes 300ms 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
www.hollywoodreporter.com takes 207ms 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 www.hollywoodreporter.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
Google Tag Manager takes 203ms 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
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.
Source: web.dev
51% of Google Tag Manager'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
70% of Google Tag Manager'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.