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fail2ban.org

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

Last scanned Jul 26, 2026, 4:17 PM

83

Overall score

Great

Summary

Daemon to ban hosts that cause multiple authentication errors - fail2ban/fail2ban. This website uses WordPress hosted on Azure. SEO is fair (70/100) and accessibility is good (85/100). Security scores excellent (100/100) and performance good (80/100). Top issue: Title longer than 60 characters.

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

United States
Hosted on Azure

Products & pricing

Product and pricing information published in this site's own structured data.

Try the Copilot-powered platform

$0.18 USD

Top issues to fix

7 issues found

  • 1 cookie without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

70

SEO

5 issue(s) found

80

Performance

685 ms

100

Security

HTTPS & header checks

85

Accessibility

1 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.

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

Contact

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

Meta tags

Title
GitHub - fail2ban/fail2ban: Daemon to ban hosts that cause multiple authentication errors · GitHub
Description
Daemon to ban hosts that cause multiple authentication errors - fail2ban/fail2ban
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width
Robots meta
Manifest
https://github.com/manifest.json

OpenGraph & Twitter Card

OpenGraph

og:title
GitHub - fail2ban/fail2ban: Daemon to ban hosts that cause multiple authentication errors
og:description
Daemon to ban hosts that cause multiple authentication errors - fail2ban/fail2ban
og:type
object
og:url
https://github.com/fail2ban/fail2ban

Twitter Card

twitter:card
summary_large_image
twitter:title
GitHub - fail2ban/fail2ban: Daemon to ban hosts that cause multiple authentication errors
twitter:description
Daemon to ban hosts that cause multiple authentication errors - fail2ban/fail2ban

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
Azure
CDN provider
IP address
20.207.73.82
ASN
AS8075 (MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US)

DNS records

TypeValue
A
  • 20.207.73.82
AAAA
MX
  • github-com.mail.protection.outlook.com
TXT
NS
  • dns4.p08.nsone.net
  • ns-1707.awsdns-21.co.uk
  • dns1.p08.nsone.net
  • ns-421.awsdns-52.com
  • dns3.p08.nsone.net
  • dns2.p08.nsone.net
  • ns-1283.awsdns-32.org
  • ns-520.awsdns-01.net
CAA
  • 0 issue "letsencrypt.org"
  • 0 issue "sectigo.com"
  • 0 issuewild "digicert.com"
  • 0 issue "digicert.com"
  • 0 issuewild "letsencrypt.org"
  • 0 issue "globalsign.com"
  • 0 issuewild "sectigo.com"
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Sectigo Limited
Subject
github.com
Valid from
Jul 3, 2026
Valid to
Sep 30, 2026
Days until expiry
63
SAN domains
github.com, www.github.com

Security headers

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

Compression: gzip · 3 cookie(s) observed

Content & assets

Headings

H1 3 · H2 21 · H3 11

Links

129 internal · 28 external · 0 broken

Images

2 total · 1 missing alt

Scripts / Styles

18 scripts · 27 stylesheets

JS / CSS size

578 KB · 1.5 MB

Page size

361 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
82
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Title longer than 60 characters
  • Missing canonical link
  • Multiple H1 headings found
  • No structured data (JSON-LD) found
  • sitemap.xml not found

Accessibility issues

  • More than 20% of images are missing alt text

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://fail2ban.org
Final URL
https://github.com/fail2ban/fail2ban
HTTP status
200
HTTP version
HTTP/2
Response time
678 ms
HTML size
361 KB
Redirect chain
https://fail2ban.org → https://github.com/fail2ban/fail2ban

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Frequently asked questions

What technology does fail2ban.org use?
fail2ban.org is built with WordPress.
Is fail2ban.org secure (HTTPS)?
Yes. fail2ban.org uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Sep 30, 2026.
Who hosts fail2ban.org?
fail2ban.org is hosted on Azure.
What is fail2ban.org's SEO score?
fail2ban.org scored 70/100 for SEO in the latest analysis (fair).
What is fail2ban.org's overall website score?
fail2ban.org has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
What products does fail2ban.org offer?
fail2ban.org offers Try the Copilot-powered platform.
Is fail2ban.org hiring?
fail2ban.org has a careers page; check it directly for current openings.