Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
Info::
✓
Last-Modified header present
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
C
Page Weight Budget
Action
1.6 MB transferred, 102 requests
REVIEW
1.6 MB transferred, 102 requests
Info::
i
Page weighs 4.5 MB (1.6 MB transferred)
Warning::
!
JavaScript is 981 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 981 KB
Warning::
!
102 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
i
Estimated 0.34 g CO2 per page load
1.6 MBtransferred
102 requests
0.34 g CO2 per page load
JavaScript981.0 KiB59%
Images378.1 KiB23%
Other112.2 KiB7%
Fonts71.5 KiB4%
HTML68.5 KiB4%
Other24.4 KiB1%
CSS21.3 KiB1%
Other9.6 KiB1%
Other562 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
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
46 images, 0 KB saveable
REVIEW
46 images, 0 KB saveable
Warning::
!
https://thenationonlineng.net/wp-content/themes/th... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
46images378 KB
0oversized-0 KB
33legacy format
1missing 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
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
6 fonts (71 KB)
PASS
6 fonts (71 KB)
Info::
i
6 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
6
71 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
normal.woff2woff2swap
Size8 KB
Load time36 ms
Start132 ms
RiskFOUT — text flashes from fallback to web font
normal.woff2woff2swap
Size8 KB
Load time41 ms
Start211 ms
RiskFOUT — text flashes from fallback to web font
normal.woff2woff2swap
Size8 KB
Load time39 ms
Start212 ms
RiskFOUT — text flashes from fallback to web font
normal.woff2woff2swap
Size6 KB
Load time21 ms
Start304 ms
RiskFOUT — text flashes from fallback to web font
memvYaGs126MiZpBA-UvWbX...woff2swap
Size42 KB
Load time10 ms
Start1.8 s
RiskFOUT — text flashes from fallback to web font
memvYaGs126MiZpBA-UvWbX...woff2swap
Size0 KB
Load time12 ms
Start1.8 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
No optimization needed
PASS
No optimization needed
Info::
✓
No resource hint issues
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
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
102 requests over 2531ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
62%of JavaScript execution is third-party
First-party Third-party4347ms · 929KB · $58/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
Unattributable
Unattributable
Other
852ms
0 KB
—
$11/mo
Costly
fundingchoicesmessages.google.com
fundingchoicesmessages.google.com
Other
705ms
65 KB
—
$9/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
610ms
161 KB
40%
$8/mo
Costly
fundingchoicesmessages.google.com
fundingchoicesmessages.google.com
Other
426ms
70 KB
53%
$6/mo
Costly
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
394ms
187 KB
70%
$5/mo
Costly
pagead2.googlesyndication.com
pagead2.googlesyndication.com
Other
360ms
55 KB
41%
$5/mo
Costly
pagead2.googlesyndication.com
pagead2.googlesyndication.com
Other
293ms
178 KB
85%
$4/mo
Costly
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
187ms
34 KB
—
$2/mo
Optional
cse.google.com
cse.google.com
Other
186ms
4 KB
—
$2/mo
Optional
www.google.com
www.google.com
Other
95ms
99 KB
50%
$1/mo
Optional
cse.google.com
cse.google.com
Other
74ms
44 KB
73%
$1/mo
Optional
notifpush.com
notifpush.com
Other
59ms
15 KB
—
$1/mo
Optional
ep2.adtrafficquality.google
ep2.adtrafficquality.google
Other
55ms
8 KB
—
$1/mo
Optional
static.cloudflareinsights.com
static.cloudflareinsights.com
Other
51ms
11 KB
—
$1/mo
Optional
Unattributable
Other
Costly
Execution852ms
Transfer0 KB
Monthly Cost$11/mo
fundingchoicesmessages.google.com
Other
Costly
Execution705ms
Transfer65 KB
Monthly Cost$9/mo
Google Tag Manager
Tag Manager
Costly
Execution610ms
Transfer161 KB
Unused40%
Monthly Cost$8/mo
fundingchoicesmessages.google.com
Other
Costly
Execution426ms
Transfer70 KB
Unused53%
Monthly Cost$6/mo
securepubads.g.doubleclick.net
Other
Costly
Execution394ms
Transfer187 KB
Unused70%
Monthly Cost$5/mo
pagead2.googlesyndication.com
Other
Costly
Execution360ms
Transfer55 KB
Unused41%
Monthly Cost$5/mo
pagead2.googlesyndication.com
Other
Costly
Execution293ms
Transfer178 KB
Unused85%
Monthly Cost$4/mo
securepubads.g.doubleclick.net
Other
Optional
Execution187ms
Transfer34 KB
Monthly Cost$2/mo
cse.google.com
Other
Optional
Execution186ms
Transfer4 KB
Monthly Cost$2/mo
www.google.com
Other
Optional
Execution95ms
Transfer99 KB
Unused50%
Monthly Cost$1/mo
cse.google.com
Other
Optional
Execution74ms
Transfer44 KB
Unused73%
Monthly Cost$1/mo
notifpush.com
Other
Optional
Execution59ms
Transfer15 KB
Monthly Cost$1/mo
ep2.adtrafficquality.google
Other
Optional
Execution55ms
Transfer8 KB
Monthly Cost$1/mo
static.cloudflareinsights.com
Other
Optional
Execution51ms
Transfer11 KB
Monthly Cost$1/mo
These scripts may cost more than they're worth
Unattributable adds 852ms and costs ~$11/month
fundingchoicesmessages.google.com adds 705ms and costs ~$9/month
Google Tag Manager adds 610ms and costs ~$8/month
fundingchoicesmessages.google.com adds 426ms and costs ~$6/month
securepubads.g.doubleclick.net adds 394ms and costs ~$5/month
pagead2.googlesyndication.com adds 360ms and costs ~$5/month
pagead2.googlesyndication.com adds 293ms and costs ~$4/month
62% 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
Unattributable takes 852ms 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
fundingchoicesmessages.google.com takes 705ms 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 610ms 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
fundingchoicesmessages.google.com takes 426ms 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
53% of fundingchoicesmessages.google.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
securepubads.g.doubleclick.net takes 394ms 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
70% of securepubads.g.doubleclick.net'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
pagead2.googlesyndication.com takes 360ms 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
pagead2.googlesyndication.com takes 293ms 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
85% 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
50% of www.google.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
73% of cse.google.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.
375 ms
750 ms
1.5 s
1.9 s
2.2 s