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fedibird.com

https://fedibird.com· First analyzed 09 May 2026· Updated 09 May 2026
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fedibird.com
Desktop screenshot of fedibird.com
Mobile screenshot of fedibird.com
Mobile

Sponsored

Hosting Provider

KAGOYA JAPAN Inc.

IP Address

133.18.101.92

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Kyoto, Japan

ASN

AS24282

Server

Mastodon

CDN

Cloudflare

WAF

Cloudflare

Nameservers

elaine.ns.cloudflare.com.zeus.ns.cloudflare.com.

Performance

76

Core Web Vitals

Weight

First Contentful Paint
3.0 s10%
Speed Index
3.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.5 MB
18 requests

Image Optimization

WebPAVIF
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
KAGOYA JAPAN Inc.
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

SEO Analysis

D43/100
12
10
2
Meta Tags5/15
Content3/12
Headings1/8
Technical16/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile1/4
Indexability3/3
F
fedibird.comfedibird.com

fedibird.com - Fedibird

様々な目的に使える、日本の汎用マストドンサーバーです。安定した利用環境と、多数の独自機能を提供しています。

Title Length23 chars

Recommended: 50-60 chars (~134px / 580px)

Description Length53 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (4/5) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

50 rules

Local SEO

Local Search Readiness

8/100
Poor
2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F18/100
Bot Access
7/25
Machine Read.
1/25
Schema Data
0/25
Citation
10/25

AI Bot Access

2/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:3%
Words:51
Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
Upgrade to view recommendations

Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
C
65/100
8
Passed
6
Critical
0
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
7/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
4/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
53/100
C
188 mg
CO₂e / view
1.5 MB
Page Weight
60%
Cleaner Than
New Visitor
215 mg
vs
Returning (cached)
108 mg
Annual (10K/mo)
22.6 kg
Emission Segments
Data Center
42 mg
Network
45 mg
Device
101 mg
Resource Breakdown
JavaScript
596.1 KB
CSS
918.2 KB
HTML
7.8 KB
Green Hosting Not Verified
KAGOYA JAPAN Inc.
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

65%Fair
Critical / Transactional

HTTPS

No WAF

84d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

03.05.2026

Valid Until

01.08.2026

Subject Alternative Names (2)

*.fedibird.comfedibird.com

SHA-256 Fingerprint

F0:A2:94:29:BF:CA:CB:F3:DB:8B:65:35:D5:0E:E0:B9:8E:45:A1:DF...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟡 0s(max-age=0, private, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-security-policy
base-uri 'none'; default-src 'none'; frame-ancestors 'none';...
content-type
text/html; charset=utf-8
date
Sat, 09 May 2026 05:14:50 GMT
etag
W/"7fd0be0132c2834e67830e6bc6302177"
Good Warning Issue

Email Infrastructure

Google Workspace

Score

40

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt4.aspmx.l.google.com
alt2.aspmx.l.google.com
alt3.aspmx.l.google.com
aspmx.l.google.com

+1 more

Domain Information

fedibird.com

Domain Age
7y 7m

Created

22.09.2018

Expires

02.08.2029

Last Updated

02.08.2019

Registrar

Cloudflare, Inc.

DNSSEC
Not Enabled

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
C
69/100
Mobile Friendly1 breakpoint
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1, viewport-fit=cover
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

mastodon-font-sans-serif

WCAG Partial
54/100
Readability
/30
18/30

15px · LH 1.33

Hierarchy
/20
8/20
WCAG
/25
17/25

2.26:1 min contrast

Performance
/25
11/25

1 font · 5 req

Heading Font

mastodon-font-sans-serif

Body Font

mastodon-font-sans-serif

Sans15px

Contrast Ratio

2.26:1

5 issues

Reading Comfort

~41 CPL

Narrow lines
18px
h4
15px
p

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 2.3:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

4 unique colors
Light
#181b22
Secondary· 57.00000000000001%
#282c37
Primary· 24.6%
#91bfd7
Secondary· 10.1%
#32475f
Secondary· 8.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

7 Resources

3
Scripts
4
Styles
0
Async
0
Defer

Top Script Sources

local(3)

Website Identity

fedibird.com

7 years old
Location detected: 🇯🇵 Japanvia ip
Cloudflare, Inc.📧 Google Workspaceja

Social Profiles

GitHub

Sponsored

Last analyzed: 09 May 2026 at 05:15

Historical Analysis & Change Tracking