What technology does fosstodon.org use?

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

Is fosstodon.org secure (HTTPS)?

Yes. fosstodon.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 27, 2026.

Who hosts fosstodon.org?

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

What is fosstodon.org's SEO score?

fosstodon.org scored 60/100 for SEO in the latest analysis (fair).

What is fosstodon.org's overall website score?

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

Has fosstodon.org's score changed over time?

fosstodon.org's overall score has improved by 1 point (from 85 to 86) since Jul 26, 2026.

fosstodon.org

Fosstodon

Last scanned Aug 2, 2026, 5:00 AM · 5 views

Overall score

Great

Summary

Fosstodon is an invite only Mastodon instance that is open to those who are interested in technology; particularly free & open source software. If you wish to join, contact us for an invite. SEO is fair (60/100) and accessibility is excellent (90/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.

Fosstodon is an invite only Mastodon instance that is open to those who are interested in technology; particularly free & open source software. If you wish to join, contact us for an invite.

Top issues to fix

6 issues found · 1 high priority

No H1 heading found
SEO
Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.
Missing canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.
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.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

SEO

6 issue(s) found

100

Performance

402 ms

100

Security

HTTPS & header checks

Accessibility

1 issue(s) found

Score history

+1 overall since Jul 26, 2026

Overall: 86
SEO: 60
Security: 100
Performance: 100
Accessibility: 90

Organization

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

Fosstodon is an invite only Mastodon instance that is open to those who are interested in technology; particularly free & open source software. If you wish to join, contact us for an invite.

Meta tags

Title: Fosstodon
Description: Fosstodon is an invite only Mastodon instance that is open to those who are interested in technology; particularly free & open source software. If you wish to join, contact us for an invite.
Canonical
Language: en
Charset: utf-8
Viewport: width=device-width, initial-scale=1, viewport-fit=cover
Robots meta
Manifest: https://fosstodon.org/manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: Fastly
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: fosstodon.org
Valid from: Jul 29, 2026
Valid to: Oct 27, 2026
Days until expiry: 86
SAN domains: *.fosstodon.org, fosstodon.org

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyEnabled
X-Frame-OptionsEnabled
X-Content-Type-OptionsEnabled
Referrer-PolicyEnabled
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

5 scripts · 17 stylesheets

JS / CSS size

9.4 KB · 0 B

Page size

43.3 KB

Robots.txt & Sitemap

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

SEO issues

Meta description longer than 160 characters
Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://fosstodon.org
Final URL: https://fosstodon.org
HTTP status: 200
HTTP version: HTTP/2
Response time: 402 ms
HTML size: 43.3 KB
Redirect chain: https://fosstodon.org

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Frequently asked questions

What technology does fosstodon.org use?: We did not detect any specific technologies for fosstodon.org in the latest scan.
Is fosstodon.org secure (HTTPS)?: Yes. fosstodon.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 27, 2026.
Who hosts fosstodon.org?: Hosting provider information for fosstodon.org is not available yet.
What is fosstodon.org's SEO score?: fosstodon.org scored 60/100 for SEO in the latest analysis (fair).
What is fosstodon.org's overall website score?: fosstodon.org has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
Has fosstodon.org's score changed over time?: fosstodon.org's overall score has improved by 1 point (from 85 to 86) since Jul 26, 2026.