What technology does hedgedoc.org use?

We did not detect any specific technologies for hedgedoc.org in the latest scan.

Is hedgedoc.org secure (HTTPS)?

Yes. hedgedoc.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 1, 2026.

Who hosts hedgedoc.org?

Hosting provider information for hedgedoc.org is not available yet.

What is hedgedoc.org's SEO score?

hedgedoc.org scored 75/100 for SEO in the latest analysis (fair).

What is hedgedoc.org's overall website score?

hedgedoc.org has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.

hedgedoc.org

HedgeDoc - Ideas grow better together

Last scanned Jul 26, 2026, 1:49 PM

Overall score

Great

Summary

HedgeDoc (formerly known as CodiMD) is an open-source, web-based, self-hosted, collaborative markdown editor. SEO is good (75/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Multiple H1 headings found.

HedgeDoc (formerly known as CodiMD) is an open-source, web-based, self-hosted, collaborative markdown editor.

Top issues to fix

8 issues found · 1 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Multiple H1 headings found
SEO
Keep a single H1 per page and demote the others to H2/H3.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.

+2 more issues — details in the sections below.

SEO

4 issue(s) found

100

Performance

222 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

HedgeDoc (formerly known as CodiMD) is an open-source, web-based, self-hosted, collaborative markdown editor.

Meta tags

Title: HedgeDoc - Ideas grow better together
Description: HedgeDoc (formerly known as CodiMD) is an open-source, web-based, self-hosted, collaborative markdown editor.
Canonical: https://hedgedoc.org/
Language: en-us
Charset: utf-8
Viewport: width=device-width,initial-scale=1
Robots meta
Manifest: https://hedgedoc.org/icons/site.webmanifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

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: hedgedoc.org
Valid from: Jul 3, 2026
Valid to: Oct 1, 2026
Days until expiry: 64
SAN domains: hedgedoc.org, *.hedgedoc.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 2 · H2 19 · H3 8

Links

5 internal · 12 external · 17 broken

Images

6 total · 0 missing alt

Scripts / Styles

2 scripts · 1 stylesheets

JS / CSS size

921 B · 0 B

Page size

14.6 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Multiple H1 headings found
No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://hedgedoc.org
Final URL: https://hedgedoc.org
HTTP status: 200
HTTP version: HTTP/2
Response time: 222 ms
HTML size: 14.6 KB
Redirect chain: https://hedgedoc.org

See something wrong on this report? Request a correction

Frequently asked questions

What technology does hedgedoc.org use?: We did not detect any specific technologies for hedgedoc.org in the latest scan.
Is hedgedoc.org secure (HTTPS)?: Yes. hedgedoc.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 1, 2026.
Who hosts hedgedoc.org?: Hosting provider information for hedgedoc.org is not available yet.
What is hedgedoc.org's SEO score?: hedgedoc.org scored 75/100 for SEO in the latest analysis (fair).
What is hedgedoc.org's overall website score?: hedgedoc.org has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.