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https://gohugo.io

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
94
GRADE
A
FIX
0
REVIEW
3
PASS
10
INFO
2

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

100
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.

385 ms

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

588 ms

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.

568 ms

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

588 ms

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
15
10 PASS 3 REVIEW
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
462 KB transferred, 15 requests
PASS
462 KB transferred, 15 requests
Info::
Page weighs 1.3 MB (462 KB transferred)
Info::
15 HTTP requests
Info::
Estimated 0.09 g CO2 per page load
462 KB / 2.4 MB budget
462 KB transferred
15 requests
0.09 g CO2 per page load
JavaScript 206.5 KiB 45%
Fonts 189.1 KiB 41%
HTML 21.7 KiB 5%
Images 20.5 KiB 4%
CSS 13.5 KiB 3%
Other 9.2 KiB 2%
Other 588 B 0%
Other 544 B 0%
0 2.4 MB 4.9 MB
Under budget
A
Third-Party Impact
34% third-party, 0 ms blocking
PASS
34% third-party, 0 ms blocking
Info::
Third-party code accounts for 34% of page weight (158.5 KiB of 461.5 KiB)
Info::
Third-party blocking time is low (0 ms)
66%
34%
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 20 KB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
70ms total JS execution
PASS
70ms total JS execution
Info::
https://www.googletagmanager.com/gtag/js?id=G-MBZG...: 70ms CPU time
Warning::
Third-party scripts: 70ms (100% of total)

Main Thread Breakdown

Script Evaluation 51% Other 23% Style & Layout 12% Script Parsing & Compilation 10% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://www.googletagmanager.com/gtag/js?id=G-MBZGKNMDWC70ms58ms11ms3rd
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 FCP 385 ms LCP 588 mshttps://gohugo.io/fonts/Mulish-VariableFont_wght.ttfMulish-VariableFont_wgh... https://gohugo.io/fonts/Mulish-VariableFont_wght.ttf — 90.5 KiB — 124 ms — font-display: swaphttps://gohugo.io/fonts/Mulish-Italic-VariableFont_wght.ttfMulish-Italic-VariableF... https://gohugo.io/fonts/Mulish-Italic-VariableFont_wght.ttf — 98.5 KiB — 130 ms — font-display: swap
Mulish-VariableFont_wgh... ttf swap
Size 91 KB
Load time 124 ms
Start 114 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Mulish-Italic-VariableF... ttf swap
Size 99 KB
Load time 130 ms
Start 114 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
Page Weight Inventory
15 resources · 462 KB · 87 KB savings available
PASS
15 resources · 462 KB · 87 KB savings available
Info::
Within 1MB page-weight target
Got: 462 KB
Info::
~87 KB of savings available
Info::
2 third-party resources (34% of weight)
15 resources · 461.5 KiB · 2 third-party Within 1MB page-weight target
JavaScript 45% · 206.5 KiB
Font 41% · 189.1 KiB
Image 6% · 29.7 KiB
Document 5% · 21.7 KiB
CSS 3% · 13.5 KiB
Other 0% · 1.1 KiB

~86.8 KiB of savings available

Remove unused JavaScript: 86.8 KiB
Network Waterfall
15 requests over 481ms
INFO
0 ms 200 ms 400 ms 600 ms FCP 385 ms LCP 588 mshttps://gohugo.io// https://gohugo.io/ — 200 — 21.7 KiB — 139 ms — h2https://gohugo.io/js/head-early.6b1a74e7a372e2e4ed3d3fb9061891c7afae50657ad268231a7eab92200ccfbc.js/js/head-early.6b1a74e7a372e2e4ed3d... https://gohugo.io/js/head-early.6b1a74e7a372e2e4ed3d3fb9061891c7afae50657ad268231a7eab92200ccfbc.js — 200 — 1.1 KiB — 37 ms — h2https://gohugo.io/js/main.376fd7f2bb2e479a1911172f545953d4ddb7aa0c297060245985ed1efb847173.js/js/main.376fd7f2bb2e479a1911172f54... https://gohugo.io/js/main.376fd7f2bb2e479a1911172f545953d4ddb7aa0c297060245985ed1efb847173.js — 200 — 22.9 KiB — 59 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 — 70 ms — h2https://gohugo.io/fonts/Mulish-VariableFont_wght.ttf/fonts/Mulish-VariableFont_wght.ttf https://gohugo.io/fonts/Mulish-VariableFont_wght.ttf — 200 — 90.5 KiB — 124 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 — 98.5 KiB — 130 ms — h2https://gohugo.io/manifest.json/manifest.json https://gohugo.io/manifest.json — 200 — 588 B — 106 ms — h2https://gohugo.io/images/qr/qr_314455b5f028a2e2.png/images/qr/qr_314455b5f028a2e2.png https://gohugo.io/images/qr/qr_314455b5f028a2e2.png — 200 — 767 B — 101 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 — 52 ms — h2https://gohugo.io/images/hugo-github-screenshot_hu_986d76b214b1d0cd.webp/images/hugo-github-screenshot_hu_9... https://gohugo.io/images/hugo-github-screenshot_hu_986d76b214b1d0cd.webp — 200 — 18.5 KiB — 59 ms — h2https://gohugo.io/js/turbo.96dd5035c0920075924738611683f64d0b6834b9335b7842854d502f61d50bf7.js/js/turbo.96dd5035c0920075924738611... https://gohugo.io/js/turbo.96dd5035c0920075924738611683f64d0b6834b9335b7842854d502f61d50bf7.js — 200 — 24.5 KiB — 55 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 — 145 ms — h2https://region1.google-analytics.com/g/collect?v=2&tid=G-MBZGKNMDWC&gtm=45je64h1h1v899083998za200zd899083998&_p=1776802716587&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=2044801524.1776802717&frm=0&pscdl=noapi&rcb=2&sr=800x600&uaa=x86&uab=64&uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938468~117266401~117384406~117512542&sid=1776802716&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=411region1.google-analytics.com/g/coll... https://region1.google-analytics.com/g/collect?v=2&tid=G-MBZGKNMDWC&gtm=45je64h1h1v899083998za200zd899083998&_p=1776802716587&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=2044801524.1776802717&frm=0&pscdl=noapi&rcb=2&sr=800x600&uaa=x86&uab=64&uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938468~117266401~117384406~117512542&sid=1776802716&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=411 — 204 — 544 B — 69 ms — h2https://gohugo.io/favicon-32x32.png/favicon-32x32.png https://gohugo.io/favicon-32x32.png — 200 — 1.7 KiB — 38 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
100% of JavaScript execution is third-party
First-party Third-party 70ms · 158KB · $0/mo
Google Tag Manager
Tag Manager
Optional
Execution 70ms
Transfer 158 KB
Unused 42%
Monthly Cost $0/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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