nagios.org
Nagios | Open Source Network Monitoring Solution
Last scanned Aug 5, 2026, 10:00 AM · 7 views
Overall score
Great
Summary
Nagios Core is a powerful open source monitoring engine with support for plugins, add-ons, NCPA, Mod-Gearman, and community-driven integrations. This website uses WordPress. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: robots.txt not found.
Nagios Core is a powerful open source monitoring engine with support for plugins, add-ons, NCPA, Mod-Gearman, and community-driven integrations.
Top issues to fix
6 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
SEO
2 issue(s) found
Performance
526 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-1 overall since Jul 26, 2026
- Overall
- 88
- SEO
- 90
- Security
- 65
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Nagios Core is a powerful open source monitoring engine with support for plugins, add-ons, NCPA, Mod-Gearman, and community-driven integrations.
Meta tags
- Title
- Nagios | Open Source Network Monitoring Solution
- Description
- Nagios Core is a powerful open source monitoring engine with support for plugins, add-ons, NCPA, Mod-Gearman, and community-driven integrations.
- Canonical
- https://www.nagios.org/
- Language
- en-US
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- follow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Sectigo Limited
- Subject
- *.nagios.org
- Valid from
- Sep 10, 2025
- Valid to
- Oct 11, 2026
- Days until expiry
- 67
- SAN domains
- *.nagios.org, nagios.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 8 · H3 20
Links
29 internal · 26 external · 0 broken
Images
26 total · 0 missing alt
Scripts / Styles
49 scripts · 9 stylesheets
JS / CSS size
154 KB · 59.2 KB
Page size
206 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://nagios.org
- Final URL
- https://www.nagios.org/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 522 ms
- HTML size
- 206 KB
- Redirect chain
- https://nagios.org → https://www.nagios.org/
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Frequently asked questions
- What technology does nagios.org use?
- nagios.org is built with PHP, WordPress, jQuery, Google Analytics, Apache.
- Is nagios.org secure (HTTPS)?
- Yes. nagios.org uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Oct 11, 2026.
- Who hosts nagios.org?
- Hosting provider information for nagios.org is not available yet.
- What is nagios.org's SEO score?
- nagios.org scored 90/100 for SEO in the latest analysis (excellent).
- What is nagios.org's overall website score?
- nagios.org has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
- Has nagios.org's score changed over time?
- nagios.org's overall score has declined by 1 point (from 89 to 88) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card