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Performance

· 16 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
84
GRADE
B
FIX
4
REVIEW
2
PASS
8
INFO
2

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

Mobile Desktop
61
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
92
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.
83
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.

1.91 s

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

8.81 s

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

498 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.

2.70 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.

10.22 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
16
8 PASS 2 REVIEW 4 FIX
D
Page Weight Budget
Action
2.1 MB transferred, 152 requests
FIX
2.1 MB transferred, 152 requests
Info::
Page weighs 5.8 MB (2.1 MB transferred)
Warning::
JavaScript is 948 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 948 KB
Warning::
152 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.44 g CO2 per page load
2.1 MB / 2.4 MB budget
2.1 MB transferred
152 requests
0.44 g CO2 per page load
JavaScript 948.5 KiB 44%
Other 361.5 KiB 17%
Other 303.8 KiB 14%
Fonts 196.5 KiB 9%
Images 153.1 KiB 7%
CSS 130.4 KiB 6%
HTML 66.6 KiB 3%
0 2.4 MB 4.9 MB
Approaching limit

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

D
JS Execution Cost
Action
2790ms total JS execution
FIX
2790ms total JS execution
Warning::
Unattributable: 821ms CPU time
Warning::
https://www.hashicorp.com/_next/static/chunks/1528...: 496ms CPU time
Warning::
https://www.hashicorp.com/en: 462ms CPU time
Warning::
https://www.hashicorp.com/_next/static/chunks/webp...: 324ms CPU time
Warning::
https://www.hashicorp.com/: 280ms CPU time
Info::
Third-party scripts: 1228ms (44% of total)

Main Thread Breakdown

Script Evaluation 43% Other 28% Script Parsing & Compilation 11% Style & Layout 11% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
Unattributable821ms6ms0ms3rd
https://www.hashicorp.com/_next/static/chunks/1528-1941c34bec7d3e71.js496ms475ms11ms1st
https://www.hashicorp.com/en462ms22ms34ms1st
https://www.hashicorp.com/_next/static/chunks/webpack-9955c6bc909ee506.js324ms322ms1ms1st
https://www.hashicorp.com/280ms250ms7ms1st
https://www.googletagmanager.com/gtm.js?id=GTM-NRFH7Z9265ms200ms56ms3rd
https://go.hashicorp.com/js/forms2/js/forms2.min.js141ms108ms17ms3rd
D
JS Bundles
Action
51 scripts, 301 KB unused
FIX
51 scripts, 301 KB unused
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-NRF...: 81 KB unused (46%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.hashicorp.com/_next/static/chunks/9626...: 56 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.hashicorp.com/_next/static/chunks/cd24...: 49 KB unused (83%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.hashicorp.com/_next/static/chunks/5014...: 44 KB unused (82%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.hashicorp.com/_next/static/chunks/8796...: 38 KB unused (74%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 301 KB
301 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtm.js?id=GTM-NRFH7Z9176 KB81 KB (46%)✓3rd
https://www.hashicorp.com/_next/static/chunks/9626-ab3a83821a5f7ed4.js77 KB56 KB (72%)✓1st
https://www.hashicorp.com/_next/static/chunks/cd24890f-ec7ef9f66f996c8d.js59 KB49 KB (83%)✓1st
https://www.hashicorp.com/_next/static/chunks/5014-0c132748d0a1a7de.js54 KB44 KB (82%)✓1st
https://www.hashicorp.com/_next/static/chunks/8796-08745d7caed41166.js51 KB38 KB (74%)✓1st
https://go.hashicorp.com/js/forms2/js/forms2.min.js67 KB35 KB (52%)✓3rd
https://www.hashicorp.com/_next/static/chunks/app/%5Blocale%5D/layout-11e0da82802c66d3.js7 KB—✓1st
https://www.hashicorp.com/_next/static/chunks/3335-25b30e8dae7b823c.js19 KB—✓1st
https://www.hashicorp.com/_next/static/chunks/1528-1941c34bec7d3e71.js33 KB—✓1st
https://www.hashicorp.com/_next/static/chunks/main-app-bbb2f0c0ff3d8032.js1 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

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

D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: private, no-store, max-age=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private, no-store, max-age=0

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
no-store—Never cache this response
max-age0Cache for 0 seconds
B
Image Optimization
18 images, 0 KB saveable
REVIEW
18 images, 0 KB saveable
Info::
All images are well-optimized
18 images 153 KB
0 oversized -0 KB
14 legacy format
0 missing dimensions CLS risk
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Third-Party Impact
13% third-party, 0 ms blocking
PASS
13% third-party, 0 ms blocking
Info::
Third-party code accounts for 13% of page weight (286.0 KiB of 2.1 MiB)
Info::
Third-party blocking time is low (0 ms)
87%
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 (196 KB)
PASS
2 fonts (196 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

196 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 6.0 s 7.0 s 8.0 s 9.0 s FCP 1.9 s LCP 8.8 shttps://www.hashicorp.com/_next/static/media/d29050812a1756cf-s.p.woff2d29050812a1756cf-s.p.woff2 https://www.hashicorp.com/_next/static/media/d29050812a1756cf-s.p.woff2 — 51.6 KiB — 0 ms — font-display: swaphttps://www.hashicorp.com/_next/static/media/d5a42912b4de4242-s.p.woff2d5a42912b4de4242-s.p.woff2 https://www.hashicorp.com/_next/static/media/d5a42912b4de4242-s.p.woff2 — 144.9 KiB — 0 ms — font-display: swap
d29050812a1756cf-s.p.woff2 woff2 swap
Size 52 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
d5a42912b4de4242-s.p.woff2 woff2 swap
Size 145 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~72 KB and ~144 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
152 requests over 0ms
INFO

Performance analysis not available for this result.

Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
44% of JavaScript execution is third-party
First-party Third-party 1228ms · 243KB · $16/mo
Unattributable
Other
Costly
Execution 821ms
Transfer 0 KB
Monthly Cost $11/mo
Google Tag Manager
Tag Manager
Costly
Execution 265ms
Transfer 176 KB
Unused 46%
Monthly Cost $4/mo
go.hashicorp.com
Other
Optional
Execution 141ms
Transfer 67 KB
Unused 52%
Monthly Cost $2/mo

These scripts may cost more than they're worth

  • Unattributable adds 821ms and costs ~$11/month
  • Google Tag Manager adds 265ms and costs ~$4/month

44% 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

Unattributable takes 821ms 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

Google Tag Manager takes 265ms 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

52% of go.hashicorp.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

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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