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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
91
GRADE
A
FIX
2
REVIEW
3
PASS
10
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
74
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
79
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

3.02 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

5.50 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

0 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.000

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

3.24 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

5.50 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
17
10 PASS 3 REVIEW 2 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (275.8 KiB of 276.0 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
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.

B
Image Optimization
5 images, 0 KB saveable
REVIEW
5 images, 0 KB saveable
Info::
All images are well-optimized
5 images 88 KB
0 oversized -0 KB
5 legacy format
0 missing dimensions CLS risk
B
JS Execution Cost
742ms total JS execution
REVIEW
742ms total JS execution
Warning::
https://www.ri.gov/js/portal2016/portal.min.js: 465ms CPU time
Info::
https://www.ri.gov/: 158ms CPU time
Info::
Unattributable: 119ms CPU time
Warning::
Third-party scripts: 742ms (100% of total)

Main Thread Breakdown

Script Evaluation 38% Other 32% Style & Layout 21% Rendering 4% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://www.ri.gov/js/portal2016/portal.min.js465ms226ms9ms3rd
https://www.ri.gov/158ms32ms2ms3rd
Unattributable119ms6ms0ms3rd
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
276 KB transferred, 18 requests
PASS
276 KB transferred, 18 requests
Info::
Page weighs 548 KB (276 KB transferred)
Info::
18 HTTP requests
Info::
Estimated 0.06 g CO2 per page load
276 KB / 2.4 MB budget
276 KB transferred
18 requests
0.06 g CO2 per page load
Images 87.8 KiB 32%
JavaScript 80.8 KiB 29%
Fonts 69.5 KiB 25%
CSS 30.5 KiB 11%
HTML 5.8 KiB 2%
Other 1.6 KiB 1%
0 2.4 MB 4.9 MB
Under budget
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
2 fonts (70 KB)
PASS
2 fonts (70 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

70 KB total

Render-blocking

0

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 3.0 s LCP 5.5 shttps://www.ri.gov/font/fontawesome-webfont.woff2?v=4.3.0fontawesome-webfont.woff2 https://www.ri.gov/font/fontawesome-webfont.woff2?v=4.3.0 — 55.8 KiB — 711 ms — font-display: swaphttps://fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff2S6uyw4BMUTPHjx4wXiWtFCc... https://fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff2 — 13.7 KiB — 68 ms — font-display: swap
fontawesome-webfont.woff2 unknown swap
Size 56 KB
Load time 711 ms
Start 1.4 s
Risk FOUT — text flashes from fallback to web font
S6uyw4BMUTPHjx4wXiWtFCc... woff2 swap
Size 14 KB
Load time 68 ms
Start 1.5 s
Risk FOUT — 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 ~17 KB and ~34 ms

A+
JS Bundles
4 scripts, 22 KB unused
PASS
4 scripts, 22 KB unused
Warning::
https://www.ri.gov/js/portal2016/portal.min.js: 22 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 22 KB
22 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.ri.gov/js/portal2016/portal.min.js55 KB22 KB (41%)✓3rd
https://www.ri.gov/js/menu.js2 KB—✓3rd
https://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js6 KB—✓3rd
https://ssl.google-analytics.com/ga.js17 KB—✓3rd

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

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
Page Weight Inventory
18 resources · 276 KB · 22 KB savings available
PASS
18 resources · 276 KB · 22 KB savings available
Info::
Within 1MB page-weight target
Got: 276 KB
Warning::
17 third-party resources (100% of weight)
18 resources · 276.0 KiB · 17 third-party Within 1MB page-weight target
Image 32% · 89.2 KiB
JavaScript 29% · 80.8 KiB
Font 25% · 69.5 KiB
CSS 11% · 30.5 KiB
Document 2% · 6.0 KiB
Other 0% · 0 B

~22.4 KiB of savings available

Remove unused JavaScript: 22.4 KiB
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
18 requests over 2199ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 3.0 s LCP 5.5 shttps://ri.gov// https://ri.gov/ — 301 — 239 B — 433 ms — http/1.1http://www.ri.gov/www.ri.gov/ http://www.ri.gov/ — 307 — 0 B — 1 ms — http/1.1https://www.ri.gov/www.ri.gov/ https://www.ri.gov/ — 200 — 5.8 KiB — 143 ms — h2https://www.ri.gov/styles/portal2016/css/portal.min.csswww.ri.gov/styles/portal2016/css/po... https://www.ri.gov/styles/portal2016/css/portal.min.css — 200 — 29.3 KiB — 469 ms — h2https://www.ri.gov/js/portal2016/portal.min.jswww.ri.gov/js/portal2016/portal.min... https://www.ri.gov/js/portal2016/portal.min.js — 200 — 55.4 KiB — 742 ms — h2https://www.ri.gov/img/portal2017/logo.pngwww.ri.gov/img/portal2017/logo.png https://www.ri.gov/img/portal2017/logo.png — 200 — 21.4 KiB — 115 ms — h2https://www.ri.gov/img/portal2017/gov.pngwww.ri.gov/img/portal2017/gov.png https://www.ri.gov/img/portal2017/gov.png — 200 — 24.1 KiB — 459 ms — h2https://www.ri.gov/img/portal2015/totop.pngwww.ri.gov/img/portal2015/totop.png https://www.ri.gov/img/portal2015/totop.png — 200 — 14.7 KiB — 464 ms — h2https://www.ri.gov/js/menu.jswww.ri.gov/js/menu.js https://www.ri.gov/js/menu.js — 200 — 2.1 KiB — 371 ms — h2https://www.ri.gov/styles/portal2016/css/print.csswww.ri.gov/styles/portal2016/css/pr... https://www.ri.gov/styles/portal2016/css/print.css — 200 — 367 B — 414 ms — h2https://ajax.googleapis.com/ajax/libs/webfont/1/webfont.jsajax.googleapis.com/ajax/libs/webfo... https://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js — 200 — 5.9 KiB — 78 ms — h2https://www.ri.gov/img/portal2017/gulls.jpgwww.ri.gov/img/portal2017/gulls.jpg https://www.ri.gov/img/portal2017/gulls.jpg — 200 — 27.1 KiB — 552 ms — h2https://www.ri.gov/font/fontawesome-webfont.woff2?v=4.3.0www.ri.gov/font/fontawesome-webfont... https://www.ri.gov/font/fontawesome-webfont.woff2?v=4.3.0 — 200 — 55.8 KiB — 711 ms — h2https://ssl.google-analytics.com/ga.jsssl.google-analytics.com/ga.js https://ssl.google-analytics.com/ga.js — 200 — 17.4 KiB — 97 ms — h2https://fonts.googleapis.com/css?family=Lato&subset=latinfonts.googleapis.com/css?family=Lat... https://fonts.googleapis.com/css?family=Lato&subset=latin — 200 — 842 B — 93 ms — h2https://ssl.google-analytics.com/r/__utm.gif?utmwv=5.7.2&utms=1&utmn=1857794600&utmhn=www.ri.gov&utmcs=windows-1252&utmsr=412x823&utmvp=412x823&utmsc=24-bit&utmul=en-us&utmje=0&utmfl=-&utmdt=RI.gov%3A%20Rhode%20Island%20Government&utmhid=1551444098&utmr=-&utmp=%2F&utmht=1776890393929&utmac=UA-4621529-2&utmcc=__utma%3D53040939.1806380292.1776890394.1776890394.1776890394.1%3B%2B__utmz%3D53040939.1776890394.1.1.utmcsr%3D(direct)%7Cutmccn%3D(direct)%7Cutmcmd%3D(none)%3B&utmjid=1991356925&utmredir=1&utmu=qAAAAAAAAAAAAAAAAAAAAAAE~ssl.google-analytics.com/r/__utm.gi... https://ssl.google-analytics.com/r/__utm.gif?utmwv=5.7.2&utms=1&utmn=1857794600&utmhn=www.ri.gov&utmcs=windows-1252&utmsr=412x823&utmvp=412x823&utmsc=24-bit&utmul=en-us&utmje=0&utmfl=-&utmdt=RI.gov%3A%20Rhode%20Island%20Government&utmhid=1551444098&utmr=-&utmp=%2F&utmht=1776890393929&utmac=UA-4621529-2&utmcc=__utma%3D53040939.1806380292.1776890394.1776890394.1776890394.1%3B%2B__utmz%3D53040939.1776890394.1.1.utmcsr%3D(direct)%7Cutmccn%3D(direct)%7Cutmcmd%3D(none)%3B&utmjid=1991356925&utmredir=1&utmu=qAAAAAAAAAAAAAAAAAAAAAAE~ — 200 — 440 B — 25 ms — h2https://fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff2fonts.gstatic.com/s/lato/v25/S6uyw4... https://fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff2 — 200 — 13.7 KiB — 68 ms — h3https://www.ri.gov/img/favicon.icowww.ri.gov/img/favicon.ico https://www.ri.gov/img/favicon.ico — 200 — 1.4 KiB — 102 ms — h2
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-party 742ms · 61KB · $10/mo
www.ri.gov
Other
Costly
Execution 465ms
Transfer 55 KB
Unused 41%
Monthly Cost $6/mo
www.ri.gov
Other
Optional
Execution 158ms
Transfer 6 KB
Monthly Cost $2/mo
Unattributable
Other
Optional
Execution 119ms
Transfer 0 KB
Monthly Cost $2/mo

These scripts may cost more than they're worth

  • www.ri.gov adds 465ms and costs ~$6/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.ri.gov takes 465ms 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

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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