Consider code splitting or tree shaking to reduce unused code.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
Consider code splitting or tree shaking to reduce unused code.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
Consider code splitting or tree shaking to reduce unused code.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
Consider code splitting or tree shaking to reduce unused code.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
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
14 fonts (518 KB)
PASS
14 fonts (518 KB)
Info::
i
14 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
14
518 KB total
Render-blocking
0
of 14
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
KFO7CnqEu92Fr1ME7kSn66a...woff2swap
Size37 KB
Load time12 ms
Start786 ms
RiskFOUT — text flashes from fallback to web font
ieVl2ZhZI2eCN5jzbjEETS9...woff2swap
Size45 KB
Load time17 ms
Start786 ms
RiskFOUT — text flashes from fallback to web font
fa-solid-900.woff2woff2swap
Size154 KB
Load time39 ms
Start787 ms
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
BngMUXZYTXPIvIBgJJSb6uf...woff2swap
Size33 KB
Load time36 ms
Start789 ms
RiskFOUT — text flashes from fallback to web font
fa-brands-400.woff2woff2swap
Size116 KB
Load time41 ms
Start789 ms
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
fa-v4compatibility.woff2woff2swap
Size5 KB
Load time23 ms
Start790 ms
RiskFOUT — text flashes from fallback to web font
pro-fa-solid-900-12.woff2woff2swap
Size16 KB
Load time23 ms
Start921 ms
RiskFOUT — text flashes from fallback to web font
pro-fa-solid-900-1.woff2woff2swap
Size14 KB
Load time27 ms
Start921 ms
RiskFOUT — text flashes from fallback to web font
pro-fa-brands-400-0.woff2woff2swap
Size37 KB
Load time29 ms
Start922 ms
RiskFOUT — text flashes from fallback to web font
pro-fa-v4compatibility....woff2swap
Size5 KB
Load time24 ms
Start922 ms
RiskFOUT — text flashes from fallback to web font
pro-fa-solid-900-13.woff2woff2swap
Size13 KB
Load time41 ms
Start923 ms
RiskFOUT — text flashes from fallback to web font
pro-fa-solid-900-22.woff2woff2swap
Size17 KB
Load time33 ms
Start923 ms
RiskFOUT — text flashes from fallback to web font
pro-fa-solid-900-14.woff2woff2swap
Size14 KB
Load time29 ms
Start924 ms
RiskFOUT — text flashes from fallback to web font
pro-fa-solid-900-0.woff2woff2swap
Size12 KB
Load time30 ms
Start924 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)
Fixing the unchecked items could save ~135 KB and ~270 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
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
Network Waterfall
63 requests over 3015ms
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-party3557ms · 490KB · $47/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.gatech.edu
www.gatech.edu
Other
1029ms
57 KB
58%
$14/mo
Costly
Unattributable
Unattributable
Other
776ms
0 KB
—
$10/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
681ms
157 KB
37%
$9/mo
Costly
www.gatech.edu
www.gatech.edu
Other
345ms
107 KB
—
$5/mo
Costly
Microsoft Clarity
scripts.clarity.ms
Session Replay
278ms
26 KB
—
$4/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
232ms
133 KB
48%
$3/mo
Costly
a40.usablenet.com
a40.usablenet.com
Other
145ms
4 KB
—
$2/mo
Optional
kit.fontawesome.com
kit.fontawesome.com
Other
71ms
6 KB
—
$1/mo
Optional
www.gatech.edu
Other
Costly
Execution1029ms
Transfer57 KB
Unused58%
Monthly Cost$14/mo
Unattributable
Other
Costly
Execution776ms
Transfer0 KB
Monthly Cost$10/mo
Google Tag Manager
Tag Manager
Costly
Execution681ms
Transfer157 KB
Unused37%
Monthly Cost$9/mo
www.gatech.edu
Other
Costly
Execution345ms
Transfer107 KB
Monthly Cost$5/mo
Microsoft Clarity
Session Replay
Costly
Execution278ms
Transfer26 KB
Monthly Cost$4/mo
Google Tag Manager
Tag Manager
Costly
Execution232ms
Transfer133 KB
Unused48%
Monthly Cost$3/mo
a40.usablenet.com
Other
Optional
Execution145ms
Transfer4 KB
Monthly Cost$2/mo
kit.fontawesome.com
Other
Optional
Execution71ms
Transfer6 KB
Monthly Cost$1/mo
These scripts may cost more than they're worth
www.gatech.edu adds 1029ms and costs ~$14/month
Unattributable adds 776ms and costs ~$10/month
Google Tag Manager adds 681ms and costs ~$9/month
www.gatech.edu adds 345ms and costs ~$5/month
Microsoft Clarity adds 278ms and costs ~$4/month
Google Tag Manager adds 232ms 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.gatech.edu takes 1029ms 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
58% of www.gatech.edu'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
Unattributable takes 776ms 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 681ms 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.gatech.edu takes 345ms 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
Microsoft Clarity takes 278ms 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 232ms 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.