kottke.org
kottke.org - home of fine hypertext products
Last scanned Jul 26, 2026, 5:17 AM · 2 views
Overall score
Excellent
Summary
Jason Kottke's daily links and commentary on art, science, technology, design, film, and culture since 1998. This website uses Cloudflare Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is excellent (90/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: No H1 heading found.
Jason Kottke's daily links and commentary on art, science, technology, design, film, and culture since 1998.
- United States
- Hosted on Cloudflare
Top issues to fix
4 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.
2 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.
6 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
1 issue(s) found
Performance
392 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
- jason@kottke.org
Meta tags
- Title
- kottke.org - home of fine hypertext products
- Description
- Jason Kottke's daily links and commentary on art, science, technology, design, film, and culture since 1998.
- Canonical
- https://kottke.org/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 172.67.190.176
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- kottke.org
- Valid from
- May 31, 2026
- Valid to
- Aug 29, 2026
- Days until expiry
- 34
- SAN domains
- kottke.org, *.kottke.org
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyEnabled
Compression: gzip · 3 cookie(s) observed
Content & assets
Headings
H1 0 · H2 14 · H3 1
Links
161 internal · 416 external · 6 broken
Images
62 total · 7 missing alt
Scripts / Styles
22 scripts · 4 stylesheets
JS / CSS size
70.8 KB · 484 B
Page size
352 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 5
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- No H1 heading found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://kottke.org
- Final URL
- https://kottke.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 385 ms
- HTML size
- 352 KB
- Redirect chain
- https://kottke.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does kottke.org use?
- kottke.org is built with PHP, jQuery, Cloudflare Analytics.
- Is kottke.org secure (HTTPS)?
- Yes. kottke.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Aug 29, 2026.
- Who hosts kottke.org?
- kottke.org is hosted on Cloudflare, behind Cloudflare CDN.
- What is kottke.org's SEO score?
- kottke.org scored 90/100 for SEO in the latest analysis (excellent).
- What is kottke.org's overall website score?
- kottke.org has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card