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SGSiteGraph

joinmastodon.org

Mastodon - Decentralized social media

Last scanned Jul 24, 2026, 6:27 PM · 2 views

89

Overall score

Great

Summary

This website uses Next.js hosted on Fastly behind Fastly CDN. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Missing meta description.

United States
Hosted on Fastly

Top issues to fix

5 issues found · 1 high priority

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • 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.

70

SEO

4 issue(s) found

100

Performance

5 ms

90

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.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
Mastodon - Decentralized social media
Description
Canonical
https://joinmastodon.org/
Language
en
Charset
utf-8
Viewport
width=device-width
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Mastodon - Decentralized social media
og:description
Learn more about Mastodon, the radically different, free and open-source decentralized social media platform.
og:type
og:url

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
Fastly
CDN provider
Fastly
IP address
151.101.129.91
ASN
AS54113 (FASTLY - Fastly, Inc., US)

DNS records

TypeValue
A
  • 151.101.129.91
  • 151.101.65.91
  • 151.101.193.91
  • 151.101.1.91
AAAA
  • 2a04:4e42:200::347
  • 2a04:4e42::347
  • 2a04:4e42:600::347
  • 2a04:4e42:c00::347
  • 2a04:4e42:e00::347
  • 2a04:4e42:400::347
  • 2a04:4e42:800::347
  • 2a04:4e42:a00::347
MX
  • smtp.google.com
TXT
  • have-i-been-pwned-verification=dweb_n410bsmsvupii63ib5jghysh
  • google-site-verification=ZdmUdPkn5AACdTIaHKg-x5DL9Z0UEeQMt6QXplRQq8U
  • v=spf1 include:_spf.google.com include:helpscoutemail.com ~all
  • google-site-verification=HireWwzGlFDP1DwVu9QWZPc32E2T6ABj2SG_S17n5tQ
NS
  • ns1.exoscale.com
  • ns1.exoscale.ch
  • ns1.exoscale.io
  • ns1.exoscale.net
CAA
  • 0 issue "certainly.com"
  • 0 issue "letsencrypt.org"
CNAME
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
joinmastodon.org
Valid from
Jun 25, 2026
Valid to
Sep 23, 2026
Days until expiry
60
SAN domains
api.joinmastodon.org, joinmastodon.org, proxy.joinmastodon.org, www.joinmastodon.org

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 9 · H3 6

Links

61 internal · 38 external · 0 broken

Images

65 total · 0 missing alt

Scripts / Styles

31 scripts · 2 stylesheets

JS / CSS size

669 KB · 49.8 KB

Page size

122 KB

Robots.txt & Sitemap

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

SEO issues

  • Missing meta description
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Careers

View careers page

This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.

Scan details

Requested URL
https://joinmastodon.org
Final URL
https://joinmastodon.org
HTTP status
200
HTTP version
HTTP/2
Response time
3 ms
HTML size
122 KB
Redirect chain
https://joinmastodon.org

See something wrong on this report? Request a correction

Frequently asked questions

What technology does joinmastodon.org use?
joinmastodon.org is built with Next.js.
Is joinmastodon.org secure (HTTPS)?
Yes. joinmastodon.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 23, 2026.
Who hosts joinmastodon.org?
joinmastodon.org is hosted on Fastly, behind Fastly CDN.
What is joinmastodon.org's SEO score?
joinmastodon.org scored 70/100 for SEO in the latest analysis (fair).
What is joinmastodon.org's overall website score?
joinmastodon.org has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.
Is joinmastodon.org hiring?
joinmastodon.org has a careers page; check it directly for current openings.