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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
91
GRADE
A
FIX
2
REVIEW
2
PASS
9
INFO
2

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

Mobile Desktop
85
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
78
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

1.23 s

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

2.06 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.

1.63 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.

2.06 s

Page Load Progression

589 ms
1.2 s
1.8 s
2.4 s
2.9 s
3.5 s
4.1 s
4.7 s
Checks
15
9 PASS 2 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 (294.0 KiB of 294.2 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.

C
Image Optimization
Action
6 images, 0 KB saveable
REVIEW
6 images, 0 KB saveable
Warning::
https://www.ri.gov/img/portal2017/gov.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.ri.gov/img/portal2015/totop.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
6 images 106 KB
0 oversized -0 KB
6 legacy format
2 missing dimensions CLS 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

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

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
294 KB transferred, 18 requests
PASS
294 KB transferred, 18 requests
Info::
Page weighs 566 KB (294 KB transferred)
Info::
18 HTTP requests
Info::
Estimated 0.06 g CO2 per page load
294 KB / 2.4 MB budget
294 KB transferred
18 requests
0.06 g CO2 per page load
Images 106.1 KiB 36%
JavaScript 80.8 KiB 27%
Fonts 69.5 KiB 24%
CSS 30.5 KiB 10%
HTML 5.8 KiB 2%
Other 1.5 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+
JS Execution Cost
258ms total JS execution
PASS
258ms total JS execution
Info::
https://www.ri.gov/js/portal2016/portal.min.js: 190ms CPU time
Info::
https://www.ri.gov/: 68ms CPU time
Warning::
Third-party scripts: 258ms (100% of total)

Main Thread Breakdown

Other 34% Script Evaluation 29% Style & Layout 23% Rendering 10%
ScriptTotalScriptingParse/CompileParty
https://www.ri.gov/js/portal2016/portal.min.js190ms67ms3ms3rd
https://www.ri.gov/68ms8ms0ms3rd
A+
Font Loading
2 fonts (69 KB)
PASS
2 fonts (69 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

69 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 500 ms 1.0 s 1.5 s 2.0 s FCP 1.2 s LCP 2.1 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 — 645 ms — font-display: swaphttps://fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff2S6uyw4BMUTPHjx4wXiWtFCc... https://fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff2 — 13.7 KiB — 52 ms — font-display: swap
fontawesome-webfont.woff2 unknown swap
Size 56 KB
Load time 645 ms
Start 1.6 s
Risk FOUT — text flashes from fallback to web font
S6uyw4BMUTPHjx4wXiWtFCc... woff2 swap
Size 14 KB
Load time 52 ms
Start 1.8 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 (39%)
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 (39%)✓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 · 294 KB · 22 KB savings available
PASS
18 resources · 294 KB · 22 KB savings available
Info::
Within 1MB page-weight target
Got: 294 KB
Warning::
17 third-party resources (100% of weight)
18 resources · 294.2 KiB · 17 third-party Within 1MB page-weight target
Image 37% · 107.5 KiB
JavaScript 27% · 80.8 KiB
Font 24% · 69.5 KiB
CSS 10% · 30.5 KiB
Document 2% · 5.8 KiB
Other 0% · 123 B

~21.7 KiB of savings available

Remove unused JavaScript: 21.7 KiB
Network Waterfall
18 requests over 2399ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.2 s LCP 2.1 shttps://ri.gov// https://ri.gov/ — 302 — 123 B — 537 ms — http/1.0https://www.ri.gov/www.ri.gov/ https://www.ri.gov/ — 200 — 5.8 KiB — 390 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 — 468 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 — 55.3 KiB — 726 ms — h2https://www.ri.gov/img/portal2017/logo.pngwww.ri.gov/img/portal2017/logo.png https://www.ri.gov/img/portal2017/logo.png — 200 — 21.5 KiB — 515 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 — 612 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 — 453 ms — h2https://www.ri.gov/js/menu.jswww.ri.gov/js/menu.js https://www.ri.gov/js/menu.js — 200 — 2.1 KiB — 383 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 — 71 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 — 365 B — 280 ms — h2https://www.ri.gov/img/portal2017/ancor.pngwww.ri.gov/img/portal2017/ancor.png https://www.ri.gov/img/portal2017/ancor.png — 200 — 18.3 KiB — 510 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 — 645 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 — 645 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 — 73 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 — 52 ms — h3https://ssl.google-analytics.com/ga.jsssl.google-analytics.com/ga.js https://ssl.google-analytics.com/ga.js — 200 — 17.4 KiB — 76 ms — h2https://ssl.google-analytics.com/r/__utm.gif?utmwv=5.7.2&utms=1&utmn=1566400593&utmhn=www.ri.gov&utmcs=windows-1252&utmsr=800x600&utmvp=1350x940&utmsc=24-bit&utmul=en-us&utmje=0&utmfl=-&utmdt=RI.gov%3A%20Rhode%20Island%20Government&utmhid=277608090&utmr=-&utmp=%2F&utmht=1776890408409&utmac=UA-4621529-2&utmcc=__utma%3D53040939.1695614068.1776890408.1776890408.1776890408.1%3B%2B__utmz%3D53040939.1776890408.1.1.utmcsr%3D(direct)%7Cutmccn%3D(direct)%7Cutmcmd%3D(none)%3B&utmjid=361388890&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=1566400593&utmhn=www.ri.gov&utmcs=windows-1252&utmsr=800x600&utmvp=1350x940&utmsc=24-bit&utmul=en-us&utmje=0&utmfl=-&utmdt=RI.gov%3A%20Rhode%20Island%20Government&utmhid=277608090&utmr=-&utmp=%2F&utmht=1776890408409&utmac=UA-4621529-2&utmcc=__utma%3D53040939.1695614068.1776890408.1776890408.1776890408.1%3B%2B__utmz%3D53040939.1776890408.1.1.utmcsr%3D(direct)%7Cutmccn%3D(direct)%7Cutmcmd%3D(none)%3B&utmjid=361388890&utmredir=1&utmu=qAAAAAAAAAAAAAAAAAAAAAAE~ — 200 — 440 B — 25 ms — h2https://www.ri.gov/img/favicon.icowww.ri.gov/img/favicon.ico https://www.ri.gov/img/favicon.ico — 200 — 1.4 KiB — 113 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 258ms · 61KB · $3/mo
www.ri.gov
Other
Optional
Execution 190ms
Transfer 55 KB
Unused 39%
Monthly Cost $3/mo
www.ri.gov
Other
Optional
Execution 68ms
Transfer 6 KB
Monthly Cost $1/mo

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

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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