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fosstodon.org

https://fosstodon.org· First analyzed 17 Feb 2026· Updated 17 Feb 2026
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fosstodon.org

Sponsored

Hosting Provider

IP Address

151.101.131.52

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

Server

Mastodon

CDN

Fastly

Nameservers

dns44.cloudns.net.dns41.cloudns.net.dns43.cloudns.net.dns42.cloudns.net.

Performance

Page Speed

1.4 MB
140 requests

Image Optimization

WebPAVIFResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Substack

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

1 Technologies Detected

CSS Frameworks

1

SEO Analysis

D50/100
6
5
1
F
fosstodon.orgfosstodon.org

Trending - Fosstodon

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 ...

Description truncated.
Title Length20 chars

Recommended: 50-60 chars

Description Length191 chars

Recommended: 120-160 chars

Issues (1)

  • Many images missing alt text (4/5)

Crawlability

Sitemap
robots.txt

6 rules

Sponsored

Sponsored

A

Security Score

81%Very Good
Interactive

HTTPS

No WAF

72d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

30.01.2026

Valid Until

30.04.2026

Subject Alternative Names (2)

*.fosstodon.orgfosstodon.org

SHA-256 Fingerprint

DC:DB:35:B6:DA:BC:D2:27:64:5F:6A:A2:3F:A4:90:09:8F:B6:02:C3...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

accept-ranges
bytes
age
0
alt-svc
h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=864...
cache-control
🟡 15s(max-age=15, public, stale-while-revalidate=30, stale-if-erro...)
content-encoding
📦 Gzip(gzip)
content-length
15540
Good Warning Issue

Email Infrastructure

Zoho Mail

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

mx.zoho.eu
mx3.zoho.eu
mx2.zoho.eu

Domain Information

fosstodon.org

Domain Age
8y 6m

Created

30.07.2017

Expires

30.07.2028

Last Updated

16.08.2023

Registrar

NameCheap, Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked
Data Protection Officer mentioned

Typography & Readability

mastodon-font-sans-serif

45/100
Readability
/30
12/40

13px · LH 1.38

Hierarchy
/20
8/25

1.23x ratio

WCAG
/25
15/15

Contrast: undefined

Performance
/25
13/20

1 font

Heading Font

mastodon-font-sans-serif

Sans16px

Body Font

mastodon-font-sans-serif

Sans13px

Contrast Ratio

--

Reading Comfort

~37 CPL

Needs attention
16px
h1
13px
h4
13px
p

❌ Critical: 13px body text is too small. Increase to at least 14px.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ Good performance: Using 1 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

✅ Clean layout: Consistent left alignment throughout.

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

Sponsored

Scripts & Styles

9 Resources

3
Scripts
6
Styles
0
Async
0
Defer

Top Script Sources

local(3)

Website Identity

Sponsored

Last analyzed: 17 Feb 2026 at 04:08

Historical Analysis & Change Tracking