kottke.org
kottke.org - home of fine hypertext products
Last scanned Aug 2, 2026, 7:00 AM · 9 views
Overall score
Great
Summary
Jason Kottke's daily links and commentary on art, science, technology, design, film, and culture since 1998. This website uses Cloudflare Analytics behind Cloudflare CDN. SEO is good (80/100) and accessibility is good (75/100). 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.
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.
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.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
More than 20% of images are missing alt text
AccessibilityAdd alt attributes to the remaining images (use alt="" for purely decorative ones).
+1 more issue — details in the sections below.
SEO
3 issue(s) found
Performance
393 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Score history
-6 overall since Jul 26, 2026
- Overall
- 84
- SEO
- 80
- Security
- 90
- Performance
- 90
- Accessibility
- 75
Organization
Company details published in this site's own structured data.
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
- —
- CDN provider
- Cloudflare
- 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
- Google Trust Services
- Subject
- kottke.org
- Valid from
- Jul 29, 2026
- Valid to
- Oct 27, 2026
- Days until expiry
- 86
- 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 13 · H3 1
Links
205 internal · 400 external · 20 broken
Images
60 total · 15 missing alt
Scripts / Styles
22 scripts · 4 stylesheets
JS / CSS size
2.5 KB · 0 B
Page size
349 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No H1 heading found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- More than 20% of images are missing alt text
- 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
- 386 ms
- HTML size
- 349 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 Oct 27, 2026.
- Who hosts kottke.org?
- Hosting provider information for kottke.org is not available yet.
- What is kottke.org's SEO score?
- kottke.org scored 80/100 for SEO in the latest analysis (great).
- What is kottke.org's overall website score?
- kottke.org has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
- Has kottke.org's score changed over time?
- kottke.org's overall score has declined by 6 points (from 90 to 84) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card