clerk.com
Clerk | Authentication and User Management
Last scanned Jul 25, 2026, 8:25 PM · 1 view
Overall score
Great
Summary
The easiest way to add authentication and user management to your application. This website uses Next.js hosted on AWS behind Vercel CDN. SEO is excellent (95/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance fair (55/100). Top issue: Multiple H1 headings found.
Clerk
The easiest way to add authentication and user management to your application. Purpose-built for React, Next.js, Remix, and “The Modern Web”.
- United States
- Hosted on AWS
Products & pricing
Product and pricing information published in this site's own structured data.
Plans for every stage
$20/mo USD
Top issues to fix
4 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
4 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
1 broken link on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
1 issue(s) found
Performance
627 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Clerk
The easiest way to add authentication and user management to your application. Purpose-built for React, Next.js, Remix, and “The Modern Web”.
Contact
Email, phone, and address published on this site's own pages.
- privacy@clerk.com
Meta tags
- Title
- Clerk | Authentication and User Management
- Description
- The easiest way to add authentication and user management to your application. Purpose-built for React, Next.js, Remix, and “The Modern Web”.
- Canonical
- https://clerk.com
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- clerk.com
- Valid from
- Jul 11, 2026
- Valid to
- Oct 9, 2026
- Days until expiry
- 75
- SAN domains
- clerk.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 4 cookie(s) observed
Content & assets
Headings
H1 6 · H2 11 · H3 18
Links
40 internal · 19 external · 1 broken
Images
102 total · 0 missing alt
Scripts / Styles
164 scripts · 3 stylesheets
JS / CSS size
1.8 MB · 841 KB
Page size
1.2 MB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 8
- sitemap.xml
- Found
- URLs in sitemap
- 2982
SEO issues
- Multiple H1 headings found
Accessibility issues
No accessibility issues detected.
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Scan details
- Requested URL
- https://clerk.com
- Final URL
- https://clerk.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 603 ms
- HTML size
- 1.2 MB
- Redirect chain
- https://clerk.com
See something wrong on this report? Request a correction
Related websites
Same technology stack
ai-analytics.org
AI Analytics
featurespace.co.uk
Featurespace | Fraud and financial crime management
savvytime.com
World Clock and Time Converter - Savvy Time
renderforest.com
Create Videos, Designs, and Websites with AI | Renderforest
highereducation.com
Home - Higher Education
optimism.io
Optimism: The most used blockchain infrastructure.
Same hosting provider
chronoseconds.com
Chronoseconds | Buy & Sell Pre-Owned Luxury Watches
taronga.org.au
Taronga Conservation Society Australia | Taronga Zoo
secureauth.com
SecureAuth | Continuous Identity Authority
highereducation.com
Home - Higher Education
byside.com
Composable Digital Experience Platform | CoreMedia CMS
surveyplanet.com
Free Online Survey Maker | Unlimited Surveys | Surveyplanet
Frequently asked questions
- What technology does clerk.com use?
- clerk.com is built with Next.js.
- Is clerk.com secure (HTTPS)?
- Yes. clerk.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 9, 2026.
- Who hosts clerk.com?
- clerk.com is hosted on AWS, behind Vercel CDN.
- What is clerk.com's SEO score?
- clerk.com scored 95/100 for SEO in the latest analysis (excellent).
- What is clerk.com's overall website score?
- clerk.com has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
- What company operates clerk.com?
- clerk.com is operated by Clerk. The easiest way to add authentication and user management to your application. Purpose-built for React, Next.js, Remix, and “The Modern Web”.
- What products does clerk.com offer?
- clerk.com offers Plans for every stage.
- Is clerk.com hiring?
- clerk.com has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card