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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
85
GRADE
B
FIX
2
REVIEW
5
PASS
8
INFO
2

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

Mobile Desktop
35
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
89
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
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.

3.20 s

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

10.15 s

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

172 ms

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

0.852

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

8.53 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.

10.42 s

Page Load Progression

553 ms
1.1 s
1.7 s
2.2 s
2.8 s
3.3 s
3.9 s
4.4 s
Checks
17
8 PASS 5 REVIEW 2 FIX
D
JS Bundles
Action
5 scripts, 195 KB unused
FIX
5 scripts, 195 KB unused
Warning::
https://mn.gov/portal/js/core.js: 96 KB unused (80%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://mn.gov/portal/js/core.js: unminified — 14 KB could be saved
Warning::
https://mn.gov/18f5227b-e27b-445a-a53f-f845fbe69b4...: 40 KB unused (24%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://mn.gov/ruxitagentjs_ICA7NVfghqrux_10335260...: 37 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://siteimproveanalytics.com/js/siteanalyze_15...: 22 KB unused (46%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 195 KB
195 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://mn.gov/portal/js/core.js121 KB96 KB (80%)✗1st
https://mn.gov/18f5227b-e27b-445a-a53f-f845fbe69b40/stormcaster.js165 KB40 KB (24%)✓1st
https://mn.gov/ruxitagentjs_ICA7NVfghqrux_10335260306043831.js95 KB37 KB (39%)✓1st
https://siteimproveanalytics.com/js/siteanalyze_1535995.js47 KB22 KB (46%)✓3rd
https://mn.gov/portal/js/frameworks/jquery/frameworks.jquery.js37 KB—✓1st

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

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
Page Weight Budget
1.3 MB transferred, 32 requests
REVIEW
1.3 MB transferred, 32 requests
Info::
Page weighs 2.3 MB (1.3 MB transferred)
Info::
32 HTTP requests
Info::
Estimated 0.28 g CO2 per page load
1.3 MB / 2.4 MB budget
1.3 MB transferred
32 requests
0.28 g CO2 per page load
Images 709.3 KiB 52%
JavaScript 465.3 KiB 34%
Fonts 124.3 KiB 9%
CSS 42.7 KiB 3%
Other 13.6 KiB 1%
HTML 13.6 KiB 1%
Other 967 B 0%
Other 828 B 0%
0 2.4 MB 4.9 MB
Under budget
C
Image Optimization
Action
16 images, 0 KB saveable
REVIEW
16 images, 0 KB saveable
Warning::
https://mn.gov/portal/assets/language_tcm1077-6788... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://mn.gov/portal/assets/health-001_tcm1077-35... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://mn.gov/portal/assets/taxes-002_tcm1077-372... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://mn.gov/portal/assets/EVP%20Careers%20for%2... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://mn.gov/portal/assets/footer-register-to-vo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://mn.gov/portal/assets/governor-walz_lt-gove... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://mn.gov/portal/assets/transportation-001_tc... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://mn.gov/portal/assets/footer-register-to-vo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://mn.gov/portal/assets/footer-mn-logo_tcm107... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
16 images 709 KB
0 oversized -0 KB
16 legacy format
9 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

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

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

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

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
JS Execution Cost
Action
1777ms total JS execution
REVIEW
1777ms total JS execution
Warning::
https://mn.gov/18f5227b-e27b-445a-a53f-f845fbe69b4...: 429ms CPU time
Warning::
https://mn.gov/ruxitagentjs_ICA7NVfghqrux_10335260...: 373ms CPU time
Warning::
https://mn.gov/portal/: 293ms CPU time
Warning::
https://mn.gov/portal/js/frameworks/jquery/framewo...: 275ms CPU time
Info::
Unattributable: 213ms CPU time
Info::
Third-party scripts: 287ms (16% of total)

Main Thread Breakdown

Script Evaluation 58% Other 17% Style & Layout 12% Script Parsing & Compilation 6% Rendering 4% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://mn.gov/18f5227b-e27b-445a-a53f-f845fbe69b40/stormcaster.js429ms367ms29ms1st
https://mn.gov/ruxitagentjs_ICA7NVfghqrux_10335260306043831.js373ms333ms18ms1st
https://mn.gov/portal/293ms11ms4ms1st
https://mn.gov/portal/js/frameworks/jquery/frameworks.jquery.js275ms199ms7ms1st
Unattributable213ms10ms0ms3rd
https://mn.gov/portal/js/core.js121ms64ms35ms1st
https://siteimproveanalytics.com/js/siteanalyze_1535995.js74ms54ms19ms3rd
B
Page Weight Inventory
32 resources · 1.3 MB · 195 KB savings available
REVIEW
32 resources · 1.3 MB · 195 KB savings available
Warning::
Page weight 347 KB over 1MB target
Got: 1.3 MB Expected: ≤ 1 MB
Info::
~195 KB of savings available
Info::
4 third-party resources (7% of weight)
Info::
1 resources over 200KB
32 resources · 1.3 MiB · 4 third-party 346.6 KiB over 1MB target
Image 53% · 721.9 KiB
JavaScript 34% · 465.3 KiB
Font 9% · 124.3 KiB
CSS 3% · 42.7 KiB
Document 1% · 14.5 KiB
Other 0% · 1.8 KiB

~194.7 KiB of savings available

Remove unused JavaScript: 194.7 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Third-Party Impact
7% third-party, 0 ms blocking
PASS
7% third-party, 0 ms blocking
Info::
Third-party code accounts for 7% of page weight (91.9 KiB of 1.3 MiB)
Info::
Third-party blocking time is low (0 ms)
93%
First-party Third-party
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 (124 KB)
PASS
2 fonts (124 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

124 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 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 3.2 s LCP 10.2 shttps://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2memvYaGs126MiZpBA-UvWbX... https://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2 — 42.0 KiB — 36 ms — font-display: swaphttps://mn.gov/portal/assets/fontawesome-webfont-woff_tcm1077-844.woff?v=4.5.0fontawesome-webfont-wof... https://mn.gov/portal/assets/fontawesome-webfont-woff_tcm1077-844.woff?v=4.5.0 — 82.3 KiB — 392 ms — font-display: swap
memvYaGs126MiZpBA-UvWbX... woff2 swap
Size 42 KB
Load time 36 ms
Start 3.2 s
Risk FOUT — text flashes from fallback to web font
fontawesome-webfont-wof... woff swap
Size 82 KB
Load time 392 ms
Start 3.2 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
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 ~25 KB and ~50 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
32 requests over 7328ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 3.2 s LCP 10.2 shttps://mn.gov// https://mn.gov/ — 302 — 1004 B — 862 ms — h2https://mn.gov/portal//portal/ https://mn.gov/portal/ — 200 — 13.6 KiB — 451 ms — h2https://mn.gov/ruxitagentjs_ICA7NVfghqrux_10335260306043831.js/ruxitagentjs_ICA7NVfghqrux_1033526... https://mn.gov/ruxitagentjs_ICA7NVfghqrux_10335260306043831.js — 200 — 95.2 KiB — 1.8 s — h2https://fonts.googleapis.com/css?family=Open+Sans:400,700,800,300fonts.googleapis.com/css?family=Ope... https://fonts.googleapis.com/css?family=Open+Sans:400,700,800,300 — 200 — 2.3 KiB — 94 ms — h2https://mn.gov/portal/css/core.css/portal/css/core.css https://mn.gov/portal/css/core.css — 200 — 40.5 KiB — 1.7 s — h2https://mn.gov/portal/js/frameworks/jquery/frameworks.jquery.js/portal/js/frameworks/jquery/framew... https://mn.gov/portal/js/frameworks/jquery/frameworks.jquery.js — 200 — 37.0 KiB — 1.6 s — h2https://mn.gov/portal/assets/header-mn-logo_tcm1077-352403.png/portal/assets/header-mn-logo_tcm10... https://mn.gov/portal/assets/header-mn-logo_tcm1077-352403.png — 200 — 6.7 KiB — 1.3 s — h2https://mn.gov/portal/assets/language_tcm1077-678840.gif/portal/assets/language_tcm1077-678... https://mn.gov/portal/assets/language_tcm1077-678840.gif — 200 — 3.0 KiB — 1.3 s — h2https://mn.gov/portal/assets/governor-walz_lt-governor-flanagan-002_tcm1077-420583.jpg/portal/assets/governor-walz_lt-gov... https://mn.gov/portal/assets/governor-walz_lt-governor-flanagan-002_tcm1077-420583.jpg — 200 — 49.6 KiB — 600 ms — h2https://mn.gov/portal/assets/transportation-001_tcm1077-353072.jpg/portal/assets/transportation-001_t... https://mn.gov/portal/assets/transportation-001_tcm1077-353072.jpg — 200 — 72.9 KiB — 544 ms — h2https://mn.gov/portal/assets/health-001_tcm1077-353066.jpg/portal/assets/health-001_tcm1077-3... https://mn.gov/portal/assets/health-001_tcm1077-353066.jpg — 200 — 47.4 KiB — 378 ms — h2https://mn.gov/portal/assets/taxes-002_tcm1077-372895.jpg/portal/assets/taxes-002_tcm1077-37... https://mn.gov/portal/assets/taxes-002_tcm1077-372895.jpg — 200 — 34.9 KiB — 309 ms — h2https://mn.gov/portal/assets/EVP%20Careers%20for%20MN%20Portal-18-02_tcm1077-353248.png/portal/assets/EVP%20Careers%20for%... https://mn.gov/portal/assets/EVP%20Careers%20for%20MN%20Portal-18-02_tcm1077-353248.png — 200 — 147.3 KiB — 462 ms — h2https://mn.gov/portal/assets/footer-mn-logo_tcm1077-352400.png/portal/assets/footer-mn-logo_tcm10... https://mn.gov/portal/assets/footer-mn-logo_tcm1077-352400.png — 200 — 4.1 KiB — 278 ms — h2https://mn.gov/portal/assets/footer-register-to-vote-logo-white-left_tcm1077-446670.png/portal/assets/footer-register-to-v... https://mn.gov/portal/assets/footer-register-to-vote-logo-white-left_tcm1077-446670.png — 200 — 990 B — 333 ms — h2https://mn.gov/portal/assets/footer-register-to-vote-logo-white-right_tcm1077-446671.png/portal/assets/footer-register-to-v... https://mn.gov/portal/assets/footer-register-to-vote-logo-white-right_tcm1077-446671.png — 200 — 4.3 KiB — 310 ms — h2https://mn.gov/portal/js/core.js/portal/js/core.js https://mn.gov/portal/js/core.js — 200 — 121.1 KiB — 657 ms — h2https://siteimproveanalytics.com/js/siteanalyze_1535995.jssiteimproveanalytics.com/js/siteana... https://siteimproveanalytics.com/js/siteanalyze_1535995.js — 200 — 47.4 KiB — 92 ms — h3https://mn.gov/18f5227b-e27b-445a-a53f-f845fbe69b40/stormcaster.js/18f5227b-e27b-445a-a53f-f845fbe69b... https://mn.gov/18f5227b-e27b-445a-a53f-f845fbe69b40/stormcaster.js — 200 — 164.7 KiB — 189 ms — h2https://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2fonts.gstatic.com/s/opensans/v44/me... https://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2 — 200 — 42.0 KiB — 36 ms — h3https://mn.gov/portal/assets/fontawesome-webfont-woff_tcm1077-844.woff?v=4.5.0/portal/assets/fontawesome-webfont-... https://mn.gov/portal/assets/fontawesome-webfont-woff_tcm1077-844.woff?v=4.5.0 — 200 — 82.3 KiB — 392 ms — h2https://1535995.global.siteimproveanalytics.io/image.aspx?url=https%3A%2F%2Fmn.gov%2Fportal%2F&title=Minnesota.gov%20Portal%20%2F%20mn.gov%20%2F%2F%20Minnesota%27s%20State%20Portal&res=412x823&accountid=1535995&path=tcm%3A1077-218917-64&rt=3246&prev=214384c5-f683-aae1-fcc5-7313cbd299a6&luid=e049c179-d465-0cd8-07d7-e27a074ccbbb&kvp_path=tcm%3A1077-218917-64&rnd=597361535995.global.siteimproveanalytics... https://1535995.global.siteimproveanalytics.io/image.aspx?url=https%3A%2F%2Fmn.gov%2Fportal%2F&title=Minnesota.gov%20Portal%20%2F%20mn.gov%20%2F%2F%20Minnesota%27s%20State%20Portal&res=412x823&accountid=1535995&path=tcm%3A1077-218917-64&rt=3246&prev=214384c5-f683-aae1-fcc5-7313cbd299a6&luid=e049c179-d465-0cd8-07d7-e27a074ccbbb&kvp_path=tcm%3A1077-218917-64&rnd=59736 — 200 — 210 B — 167 ms — h2https://mn.gov/c99a4269-161c-4242-a3f0-28d44fa6ce24?/c99a4269-161c-4242-a3f0-28d44fa6ce... https://mn.gov/c99a4269-161c-4242-a3f0-28d44fa6ce24? 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
16% of JavaScript execution is third-party
First-party Third-party 287ms · 47KB · $4/mo
Unattributable
Other
Costly
Execution 213ms
Transfer 0 KB
Monthly Cost $3/mo
siteimproveanalytics.com
Other
Optional
Execution 74ms
Transfer 47 KB
Unused 46%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 213ms and costs ~$3/month

Unattributable takes 213ms 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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