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Certified Website Score for

username.dev

Block impersonation, profanity, brands and premium handles with a fast username governance API.

First audit: January 9, 2026•Last audit: January 9, 2026
Visit website
73
Overall
88Website Quality
45Trust & Security
86PageSpeed
Score trend

Not enough data to display a trend yet.

Latest audit — January 9, 2026

Deep, transparent insight into how this score is built: PageSpeed vitals, on‑page quality signals, and trust & security checks — all broken down into clear, verifiable items you can act on.

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Site Quality

Title
20/20
Username governance API for modern apps | username.dev
54 chars (ideal 30–60)
Meta Description
9/15
Block impersonation, profanity, brands and premium handles with a fast username governance API.
95 chars (ideal 120–160)
Favicon
3/3
Favicon preview
https://username.dev/favicon.ico?favicon.7d70fed4.ico
present
Viewport meta
8/8
width=device-width, initial-scale=1
correct (width=device-width, initial-scale=1)
robots.txt
6/6
User-Agent: * Allow: / Disallow: /dashboard/* Disallow: /api/* Disallow: /_next/* Sitemap: https://www.username.dev/sitemap.xml
perfect (User-agent + Allow + Sitemap)
Sitemap
7/7
https://www.username.dev/sitemap.xml
present
llms.txt
0/0
present
present
Headings
0/6
H1Don't let randos be @taylorswift
H3Status
H3Latency
H2Everything you need to manage identity
H315+ Categories
H3Global Edge Network
H3Metadata Enriched
H3High Performance
H3Smart Normalization
H3Best-in-class Security
H2What you can do with username.dev
H3Block restricted system terms
H3Auto-moderate offensive usernames
H3Protect brands & identities
H3Monetize premium usernames
H2Built for modern platforms
H3Founders & product teams
H3Trust & Safety teams
H3Growth & revenue teams
H2Drop-in integration for any stack
H2Prepaid Request Packs
H3Free Trial
H3Starter Pack
H3Pro Pack
H3Scale Pack
H3Included in every pack
H4Product
H4Legal
H4Connect
skipped heading levels (skipped from H1 to H3)
Schema.org JSON-LD
2/2
Organization: username.dev
Website
2 schemas found
Canonical URL
8/8
https://www.username.dev
present
HTML lang
4/4
en
present
Character encoding
4/4
utf-8
present

Open Graph

Title
3/3
Username governance done right
present
Description
3/3
Prevent abusive usernames, protect brands, and support premium handles in one API.
present
Image
3/3
Image preview
https://www.username.dev/api/og
present
URL
3/3
https://www.username.dev
present
Type
1/1
website
present

Twitter Cards

Card Type
1/1
summary_large_image
present
Title
1/1
Username governance done right
present
Description
1/1
Prevent abusive usernames, protect brands, and support premium handles in one API.
present
Image
1/1
Image preview
https://www.username.dev/api/og
present

Security Headers

HTTPS
30/30
HTTPS enabled
HTTP Strict Transport Security
15/15
Strict-Transport-Security: max-age=63072000
Content Security Policy
0/15
missing (should be: Content-Security-Policy: default-src 'self')
Frame Protection
0/5
missing (should be: X-Frame-Options: SAMEORIGIN)
MIME Type Protection
0/5
missing (should be: X-Content-Type-Options: nosniff)

Domain Trust

Domain Rating
0/25
How to improve DR→
no domain rating found
Domain Age
0/5
no domain age records found
Registrar
no registrar record found
Country
Unknown

Infrastructure

Provider
Vercel
49

Performance

100

SEO

96

Best Practices

82

Accessibility

Performance
49/100
Largest Contentful Paint
0/25
10.5s
2.5s4.0s
First Contentful Paint
3/10
3.6s
1.8s3.0s
Total Blocking Time
15/30
575ms
200ms400ms
Cumulative Layout Shift
25/25
0.00
0.100.25
Speed Index
6/10
5.4s
3.4s5.4s
SEO
100/100
Page isn’t blocked from indexing
31/31
Document has a `<title>` element
8/8
Document has a meta description
8/8
Page has successful HTTP status code
8/8
Links have descriptive text
8/8
Links are crawlable
8/8
robots.txt is valid
8/8
Image elements have `[alt]` attributes
8/8
Document has a valid `hreflang`
8/8
Document has a valid `rel=canonical`
8/8
Best Practices
96/100
Uses HTTPS
19/19
Avoids deprecated APIs
19/19
Avoids third-party cookies
19/19
Allows users to paste into input fields
12/12
Avoids requesting the geolocation permission on page load
4/4
Avoids requesting the notification permission on page load
4/4
Displays images with correct aspect ratio
4/4
Serves images with appropriate resolution
4/4
Page has the HTML doctype
4/4
Properly defines charset
4/4
Browser errors were logged to the console
0/4
No issues in the `Issues` panel in Chrome Devtools
4/4
Accessibility
82/100
`[aria-*]` attributes match their roles
5/5
`[aria-hidden="true"]` is not present on the document `<body>`
5/5
`[role]`s have all required `[aria-*]` attributes
5/5
`[role]` values are valid
5/5
`[aria-*]` attributes have valid values
5/5
`[aria-*]` attributes are valid and not misspelled
5/5
Buttons do not have an accessible name
0/5
Image elements have `[alt]` attributes
5/5
Form elements have associated labels
5/5
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
5/5
ARIA attributes are used as specified for the element's role
4/4
Elements use only permitted ARIA attributes
4/4
Background and foreground colors do not have a sufficient contrast ratio.
0/4
Document has a `<title>` element
4/4
`<frame>` or `<iframe>` elements do not have a title
0/4
`<html>` element has a `[lang]` attribute
4/4
`<html>` element has a valid value for its `[lang]` attribute
4/4
Links are distinguishable without relying on color.
4/4
Links do not have a discernible name
0/4
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
4/4
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
4/4
Touch targets have sufficient size and spacing.
4/4
Heading elements are not in a sequentially-descending order
0/2
Document has a main landmark.
2/2
Deprecated ARIA roles were not used
1/1
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