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fail2ban.org

https://fail2ban.org· First analyzed 27 Apr 2026· Updated 27 Apr 2026
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fail2ban.org
Desktop screenshot of fail2ban.org
Mobile screenshot of fail2ban.org
Mobile

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Hosting Provider

Scaleway
scaleway.com

IP Address

51.159.55.100

Site Location

🇫🇷 Francevia ip

Server Location

🇫🇷 Paris, France

ASN

AS12876

Organization

ONLINE

Server

github.com

Nameservers

nssec.online.net.dns1.jaqpot.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
605 ms10%
Speed Index
786 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
69 KB
113 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
WordPress
Infrastructure
Platform
GitHub Pages

Progressive Web App

Web ManifestTheme Color

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Plugins

1
WP Rocket

SEO Analysis

C63/100
18
8
1
Meta Tags7/15
Content8/12
Headings6/8
Technical15/25
E-E-A-T3/7
Images2/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
F
fail2ban.orgfail2ban.org

GitHub - fail2ban/fail2ban: Daemon to ban hosts that cause multiple...

Daemon to ban hosts that cause multiple authentication errors - fail2ban/fail2ban

Title truncated.
Title Length98 chars

Recommended: 50-60 chars (~592px / 580px)

Description Length81 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (98 chars, ~592px). Will be truncated in search results.

9 issues found

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Crawlability

Sitemap
robots.txt

89 rules

Local SEO

Local Search Readiness

9/100
Poor
3 13 2

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

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AI & LLM Readiness

D46/100
Bot Access
20/25
Machine Read.
14/25
Schema Data
0/25
Citation
12/25

AI Bot Access

14/14 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.txtvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
nav
Text ratio:3%
Words:1,301
Token eff.:Optimal
Sections/1K:0.8
Depth:1/5

Structured Data

Microdata

Citation Readiness

Opening Summary152w
Descriptive Headingsavg 4.3w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
AI readiness recommendation preview...
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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.
A+
91/100
15
Passed
2
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
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
15/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
11/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

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.
75/100
A+
7 mg
CO₂e / view
69.0 KB
Page Weight
95%
Cleaner Than
New Visitor
8 mg
vs
Returning (cached)
4 mg
Annual (10K/mo)
840 g
Emission Segments
Data Center
<0.001 g
Network
2 mg
Device
5 mg
Resource Breakdown
Images
10.0 KB
HTML
59.0 KB
Green Hosting Verified
Scaleway
Provider Match
2 recommendations
  • •Carbon footprint recommendation preview...
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C

Security Score

65%Fair
Critical / Transactional

HTTPS

No WAF

37d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.03.2026

Valid Until

03.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

github.comwww.github.com

SHA-256 Fingerprint

97:16:D3:94:41:CA:65:1C:51:BE:78:E9:69:CA:38:5E:C2:13:EC:17...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
cache-control
🟡 0s(max-age=0, private, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-security-policy
default-src 'none'; base-uri 'self'; child-src github.github...
content-type
text/html; charset=utf-8
date
Mon, 27 Apr 2026 22:49:09 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (1)

mail.fail2ban.org

Domain Information

fail2ban.org

Domain Age
19y 3m

Created

18.01.2007

Expires

18.01.2027

Last Updated

04.03.2026

Registrar

OVH sas

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
Privacy policy page linked

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
68/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Times New Roman

WCAG AAA
76/100
Readability
/30
21/30

16px · LH --

Hierarchy
/20
17/20

2x ratio

WCAG
/25
24/25

9.4:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Times New Roman

Serif32px

Body Font

Times New Roman

Serif16px

Contrast Ratio

9.4:1

WCAG AAA (≥7:1)

Reading Comfort

~41 CPL

Narrow lines
32px
h1
24px
h2
19px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.4:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

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

Buy on MyFontsFlesch 33

Color Palette

7 unique colors
Light
#ffffff
Background· 93%
#c9c7db
Secondary· 1.7%
#1e2327
Primary· 0%
#8f8ec8
Secondary· 1.6%
#a3a0d2
Secondary· 1.5%
#dadbe5
Secondary· 1.1%
#b4b1d6
Secondary· 0.7%
#686696
Secondary· 0.4%

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

30 Resources

20
Scripts
10
Styles
0
Async
19
Defer

Top Script Sources

github.githubassets.com(20)

Website Identity

fail2ban.org

cyril.jaquier@fail2ban.org
19 years old
Location detected: 🇫🇷 Francevia ip
OVH sasen

Social Profiles

GitHub

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Last analyzed: 27 Apr 2026 at 22:49

Historical Analysis & Change Tracking