onkernel.com
Kernel: Browser infrastructure for web agents and automations
Last scanned Aug 3, 2026, 11:00 AM · 6 views
Overall score
Great
Summary
Browser infrastructure for AI agents and web automations. This website uses Next.js behind Vercel CDN. SEO is good (75/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance excellent (100/100). 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.
Top issues to fix
7 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
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.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+1 more issue — details in the sections below.
SEO
4 issue(s) found
Performance
33 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-2 overall since Jul 26, 2026
- Overall
- 84
- SEO
- 75
- Security
- 75
- Performance
- 100
- Accessibility
- 90
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.
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
- Hosting provider
- —
- CDN provider
- Vercel
- IP address
- —
- ASN
- —
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
- 49
- 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 0 · H2 0 · H3 0
Links
0 internal · 0 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
34 scripts · 3 stylesheets
JS / CSS size
44.1 KB · 0 B
Page size
51.6 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- No H1 heading found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://onkernel.com
- Final URL
- https://www.kernel.sh/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 32 ms
- HTML size
- 51.6 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?
- Hosting provider information for onkernel.com is not available yet.
- What is onkernel.com's SEO score?
- onkernel.com scored 75/100 for SEO in the latest analysis (fair).
- What is onkernel.com's overall website score?
- onkernel.com has an overall SiteGraph score of 84/100, 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.
- Has onkernel.com's score changed over time?
- onkernel.com's overall score has declined by 2 points (from 86 to 84) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card