Skip to content
https://gohugo.io

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
94
GRADE
A
FIX
0
REVIEW
4
PASS
11
INFO
2

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

96
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
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.
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.

1.02 s

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

2.30 s

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

154 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.

1.02 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.

3.67 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
11 PASS 4 REVIEW
B
JS Execution Cost
591ms total JS execution
REVIEW
591ms total JS execution
Info::
https://www.googletagmanager.com/gtag/js?id=G-MBZG...: 246ms CPU time
Info::
Unattributable: 133ms CPU time
Info::
https://gohugo.io/: 112ms CPU time
Info::
https://gohugo.io/js/main.376fd7f2bb2e479a1911172f...: 100ms CPU time
Warning::
Third-party scripts: 379ms (64% of total)

Main Thread Breakdown

Script Evaluation 49% Other 24% Style & Layout 12% Script Parsing & Compilation 9% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://www.googletagmanager.com/gtag/js?id=G-MBZGKNMDWC246ms205ms39ms3rd
Unattributable133ms7ms0ms3rd
https://gohugo.io/112ms4ms1ms1st
https://gohugo.io/js/main.376fd7f2bb2e479a1911172f545953d4ddb7aa0c297060245985ed1efb847173.js100ms82ms7ms1st
B
JS Bundles
4 scripts, 87 KB unused
REVIEW
4 scripts, 87 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-MBZG...: 66 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://gohugo.io/js/turbo.96dd5035c09200759247386...: 21 KB unused (86%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 87 KB
87 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-MBZGKNMDWC158 KB66 KB (42%)3rd
https://gohugo.io/js/turbo.96dd5035c0920075924738611683f64d0b6834b9335b7842854d502f61d50bf7.js24 KB21 KB (86%)1st
https://gohugo.io/js/head-early.6b1a74e7a372e2e4ed3d3fb9061891c7afae50657ad268231a7eab92200ccfbc.js1 KB1st
https://gohugo.io/js/main.376fd7f2bb2e479a1911172f545953d4ddb7aa0c297060245985ed1efb847173.js23 KB1st

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

B
HTTP Caching
public,max-age=0,must-revalidate
REVIEW
public,max-age=0,must-revalidate
Info::
Cache-Control header is set
Got: public,max-age=0,must-revalidate
Info::
ETag present — enables conditional (304) responses
Cache-Control

public,max-age=0,must-revalidate

DirectiveValueMeaning
publicAny cache may store this response
max-age0Cache for 0 seconds
must-revalidateMust recheck with server after expiry
A+
Page Weight Budget
450 KB transferred, 15 requests
PASS
450 KB transferred, 15 requests
Info::
Page weighs 1.3 MB (450 KB transferred)
Info::
15 HTTP requests
Info::
Estimated 0.09 g CO2 per page load
450 KB / 2.4 MB budget
450 KB transferred
15 requests
0.09 g CO2 per page load
JavaScript 206.4 KiB 46%
Fonts 189.0 KiB 42%
HTML 21.7 KiB 5%
CSS 13.5 KiB 3%
Other 9.2 KiB 2%
Images 8.7 KiB 2%
Other 587 B 0%
Other 544 B 0%
0 2.4 MB 4.9 MB
Under budget
A
Third-Party Impact
35% third-party, 0 ms blocking
PASS
35% third-party, 0 ms blocking
Info::
Third-party code accounts for 35% of page weight (158.5 KiB of 449.6 KiB)
Info::
Third-party blocking time is low (0 ms)
65%
35%
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
Image Optimization
3 images, 0 KB saveable
PASS
3 images, 0 KB saveable
Info::
All images are well-optimized
3 images 9 KB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
A+
Font Loading
2 fonts (189 KB)
PASS
2 fonts (189 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

189 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 1.0 s LCP 2.3 shttps://gohugo.io/fonts/Mulish-VariableFont_wght.ttfMulish-VariableFont_wgh... https://gohugo.io/fonts/Mulish-VariableFont_wght.ttf — 90.7 KiB — 114 ms — font-display: swaphttps://gohugo.io/fonts/Mulish-Italic-VariableFont_wght.ttfMulish-Italic-VariableF... https://gohugo.io/fonts/Mulish-Italic-VariableFont_wght.ttf — 98.3 KiB — 110 ms — font-display: swap
Mulish-VariableFont_wgh... ttf swap
Size 91 KB
Load time 114 ms
Start 117 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Mulish-Italic-VariableF... ttf swap
Size 98 KB
Load time 110 ms
Start 117 ms
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 ~57 KB and ~114 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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
preload
2
dns-prefetch
prefetch

2 resource hints configured

A+
Page Weight Inventory
15 resources · 450 KB · 87 KB savings available
PASS
15 resources · 450 KB · 87 KB savings available
Info::
Within 1MB page-weight target
Got: 450 KB
Info::
~87 KB of savings available
Info::
2 third-party resources (35% of weight)
15 resources · 449.6 KiB · 2 third-party Within 1MB page-weight target
JavaScript 46% · 206.4 KiB
Font 42% · 189.0 KiB
Document 5% · 21.7 KiB
Image 4% · 18.0 KiB
CSS 3% · 13.5 KiB
Other 0% · 1.1 KiB

~86.8 KiB of savings available

Remove unused JavaScript: 86.8 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
15 requests over 486ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.0 s LCP 2.3 shttps://gohugo.io// https://gohugo.io/ — 200 — 21.7 KiB — 134 ms — h2https://gohugo.io/js/head-early.6b1a74e7a372e2e4ed3d3fb9061891c7afae50657ad268231a7eab92200ccfbc.js/js/head-early.6b1a74e7a372e2e4ed3d... https://gohugo.io/js/head-early.6b1a74e7a372e2e4ed3d3fb9061891c7afae50657ad268231a7eab92200ccfbc.js — 200 — 1.0 KiB — 51 ms — h2https://gohugo.io/js/main.376fd7f2bb2e479a1911172f545953d4ddb7aa0c297060245985ed1efb847173.js/js/main.376fd7f2bb2e479a1911172f54... https://gohugo.io/js/main.376fd7f2bb2e479a1911172f545953d4ddb7aa0c297060245985ed1efb847173.js — 200 — 22.9 KiB — 65 ms — h2https://gohugo.io/css/styles.min.41078ed40fcd58b2217cd05456227a29ff956bcdcd983dc87f4dd8f153136cba.css/css/styles.min.41078ed40fcd58b2217... https://gohugo.io/css/styles.min.41078ed40fcd58b2217cd05456227a29ff956bcdcd983dc87f4dd8f153136cba.css — 200 — 13.5 KiB — 65 ms — h2https://gohugo.io/fonts/Mulish-VariableFont_wght.ttf/fonts/Mulish-VariableFont_wght.ttf https://gohugo.io/fonts/Mulish-VariableFont_wght.ttf — 200 — 90.7 KiB — 114 ms — h2https://gohugo.io/fonts/Mulish-Italic-VariableFont_wght.ttf/fonts/Mulish-Italic-VariableFont_w... https://gohugo.io/fonts/Mulish-Italic-VariableFont_wght.ttf — 200 — 98.3 KiB — 110 ms — h2https://gohugo.io/manifest.json/manifest.json https://gohugo.io/manifest.json — 200 — 587 B — 107 ms — h2https://gohugo.io/images/qr/qr_314455b5f028a2e2.png/images/qr/qr_314455b5f028a2e2.png https://gohugo.io/images/qr/qr_314455b5f028a2e2.png — 200 — 768 B — 95 ms — h2https://gohugo.io/images/hugo-logo-wide.svg/images/hugo-logo-wide.svg https://gohugo.io/images/hugo-logo-wide.svg — 200 — 1.3 KiB — 42 ms — h2https://gohugo.io/images/hugo-github-screenshot_hu_990e3e692b6486f9.webp/images/hugo-github-screenshot_hu_9... https://gohugo.io/images/hugo-github-screenshot_hu_990e3e692b6486f9.webp — 200 — 6.7 KiB — 44 ms — h2https://gohugo.io/js/turbo.96dd5035c0920075924738611683f64d0b6834b9335b7842854d502f61d50bf7.js/js/turbo.96dd5035c0920075924738611... https://gohugo.io/js/turbo.96dd5035c0920075924738611683f64d0b6834b9335b7842854d502f61d50bf7.js — 200 — 24.4 KiB — 53 ms — h2https://www.googletagmanager.com/gtag/js?id=G-MBZGKNMDWCwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-MBZGKNMDWC — 200 — 158.0 KiB — 151 ms — h2https://region1.google-analytics.com/g/collect?v=2&tid=G-MBZGKNMDWC&gtm=45je64h1v899083998za200zd899083998&_p=1776802701026&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=1702262382.1776802701&frm=0&pscdl=noapi&rcb=19&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938469~117266401~117384405&sid=1776802701&sct=1&seg=0&dl=https%3A%2F%2Fgohugo.io%2F&dt=The%20world%27s%20fastest%20framework%20for%20building%20websites&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.anonymize_ip=true&ep.dimension1=gohugo.io&ep.dimension2=master&tfd=409region1.google-analytics.com/g/coll... https://region1.google-analytics.com/g/collect?v=2&tid=G-MBZGKNMDWC&gtm=45je64h1v899083998za200zd899083998&_p=1776802701026&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=1702262382.1776802701&frm=0&pscdl=noapi&rcb=19&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938469~117266401~117384405&sid=1776802701&sct=1&seg=0&dl=https%3A%2F%2Fgohugo.io%2F&dt=The%20world%27s%20fastest%20framework%20for%20building%20websites&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.anonymize_ip=true&ep.dimension1=gohugo.io&ep.dimension2=master&tfd=409 — 204 — 544 B — 76 ms — h2https://gohugo.io/favicon-32x32.png/favicon-32x32.png https://gohugo.io/favicon-32x32.png — 200 — 1.7 KiB — 35 ms — h2https://gohugo.io/android-chrome-144x144.png/android-chrome-144x144.png https://gohugo.io/android-chrome-144x144.png — 200 — 7.5 KiB — 36 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
64% of JavaScript execution is third-party
First-party Third-party 379ms · 158KB · $1/mo
Google Tag Manager
Tag Manager
Costly
Execution 246ms
Transfer 158 KB
Unused 42%
Monthly Cost $1/mo
Unattributable
Other
Optional
Execution 133ms
Transfer 0 KB
Monthly Cost $0/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 246ms and costs ~$1/month

64% 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

Google Tag Manager takes 246ms 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.

Send Feedback