katex.org
KaTeX – The fastest math typesetting library for the web
Last scanned Aug 4, 2026, 8:00 PM · 11 views
Overall score
Great
Summary
KaTeX – The fastest math typesetting library for the web. This website uses Google Analytics hosted on AWS behind Netlify CDN. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing canonical link.
KaTeX – The fastest math typesetting library for the web
- United States
- Hosted on AWS
Top issues to fix
6 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.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
SEO
3 issue(s) found
Performance
58 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
0 overall since Jul 27, 2026
- Overall
- 88
- SEO
- 80
- Security
- 75
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
KaTeX – The fastest math typesetting library for the web
Meta tags
- Title
- KaTeX – The fastest math typesetting library for the web
- Description
- KaTeX – The fastest math typesetting library for the web
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- 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
- katex.org
- Valid from
- Jul 3, 2026
- Valid to
- Oct 1, 2026
- Days until expiry
- 57
- SAN domains
- *.katex.org, katex.org
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 0 · H3 2
Links
3 internal · 7 external · 0 broken
Images
1 total · 0 missing alt
Scripts / Styles
9 scripts · 3 stylesheets
JS / CSS size
5.3 KB · 5.1 KB
Page size
15.6 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- 16
SEO issues
- Missing canonical link
- No structured data (JSON-LD) found
- robots.txt not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://katex.org
- Final URL
- https://katex.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 58 ms
- HTML size
- 15.6 KB
- Redirect chain
- https://katex.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does katex.org use?
- katex.org is built with Google Analytics.
- Is katex.org secure (HTTPS)?
- Yes. katex.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 1, 2026.
- Who hosts katex.org?
- katex.org is hosted on AWS, behind Netlify CDN.
- What is katex.org's SEO score?
- katex.org scored 80/100 for SEO in the latest analysis (great).
- What is katex.org's overall website score?
- katex.org has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
- Has katex.org's score changed over time?
- katex.org's overall score has stayed steady at 88/100 since Jul 27, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card