onkernel.com
Kernel: Browser infrastructure for web agents and automations
Last scanned Jul 26, 2026, 5:47 AM
Overall score
Great
Summary
Browser infrastructure for AI agents and web automations. This website uses Next.js hosted on AWS behind Vercel CDN. SEO is excellent (95/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance good (75/100). Top issue: Title longer than 60 characters.
Kernel
Browser infrastructure for AI agents and web automations. Anti-bot detection, reusable sessions, fast spin-up, and autoscaling browsers.
- United States
- Hosted on AWS
Top issues to fix
5 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.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
2 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
1 issue(s) found
Performance
83 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Kernel
Browser infrastructure for AI agents and web automations. Anti-bot detection, reusable sessions, fast spin-up, and autoscaling browsers.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Kernel: Browser infrastructure for web agents and automations
- Description
- Browser infrastructure for AI agents and web automations. Anti-bot detection, reusable sessions, fast spin-up, and autoscaling browsers.
- Canonical
- https://www.kernel.sh
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
- https://www.kernel.sh/site.webmanifest
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
- www.kernel.sh
- Valid from
- Jun 23, 2026
- Valid to
- Sep 21, 2026
- Days until expiry
- 56
- SAN domains
- www.kernel.sh
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 2 · H3 2
Links
26 internal · 7 external · 2 broken
Images
17 total · 0 missing alt
Scripts / Styles
51 scripts · 3 stylesheets
JS / CSS size
1.1 MB · 481 KB
Page size
52.1 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- 48
SEO issues
- Title longer than 60 characters
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://onkernel.com
- Final URL
- https://www.kernel.sh/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 82 ms
- HTML size
- 52.1 KB
- Redirect chain
- https://onkernel.com → https://www.kernel.sh/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does onkernel.com use?
- onkernel.com is built with Next.js, Google Analytics.
- Is onkernel.com secure (HTTPS)?
- Yes. onkernel.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 21, 2026.
- Who hosts onkernel.com?
- onkernel.com is hosted on AWS, behind Vercel CDN.
- What is onkernel.com's SEO score?
- onkernel.com scored 95/100 for SEO in the latest analysis (excellent).
- What is onkernel.com's overall website score?
- onkernel.com has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
- What company operates onkernel.com?
- onkernel.com is operated by Kernel. Browser infrastructure for AI agents and web automations. Anti-bot detection, reusable sessions, fast spin-up, and autoscaling browsers.
OpenGraph & Twitter Card
OpenGraph
Twitter Card