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nagios.com

Nagios® - IT, Network & Server Monitoring Software

Last scanned Jul 26, 2026, 5:47 AM · 1 view

86

Overall score

Great

Summary

Prevent costly IT downtime with Nagios® enterprise monitoring & alerting solutions. This website uses WordPress behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance good (80/100). Top issue: robots.txt not found.

Prevent costly IT downtime with Nagios® enterprise monitoring & alerting solutions. Server, network, & application monitoring trusted by 1M+ users globally!

Top issues to fix

6 issues found · 2 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • sitemap.xml not found

    SEO

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

  • 20 broken links on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

90

SEO

2 issue(s) found

80

Performance

2.22 s

75

Security

HTTPS & header checks

100

Accessibility

0 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.

Prevent costly IT downtime with Nagios® enterprise monitoring & alerting solutions. Server, network, & application monitoring trusted by 1M+ users globally!

FacebookX (Twitter)LinkedInYouTube

Contact

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

Meta tags

Title
Nagios® - IT, Network & Server Monitoring Software
Description
Prevent costly IT downtime with Nagios® enterprise monitoring & alerting solutions. Server, network, & application monitoring trusted by 1M+ users globally!
Canonical
https://www.nagios.com/
Language
en-US
Charset
UTF-8
Viewport
width=device-width, initial-scale=1
Robots meta
follow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Nagios® - IT, Network & Server Monitoring Software
og:description
Prevent costly IT downtime with Nagios® enterprise monitoring & alerting solutions. Server, network, & application monitoring trusted by 1M+ users globally!
og:type
website
og:url
https://www.nagios.com/

Twitter Card

twitter:card
summary_large_image
twitter:title
Nagios® - IT, Network & Server Monitoring Software
twitter:description
Prevent costly IT downtime with Nagios® enterprise monitoring & alerting solutions. Server, network, & application monitoring trusted by 1M+ users globally!

Technologies

Detected frameworks, languages, and tools.

WordPressGoogle AnalyticsCloudflare AnalyticsUmami

Hosting & CDN

Hosting provider
—
CDN provider
Cloudflare
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
nagios.com
Valid from
Jul 10, 2026
Valid to
Oct 8, 2026
Days until expiry
71
SAN domains
nagios.com, *.nagios.com

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 10 · H3 11

Links

39 internal · 13 external · 20 broken

Images

67 total · 0 missing alt

Scripts / Styles

57 scripts · 26 stylesheets

JS / CSS size

55.6 KB · 269 KB

Page size

494 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.com
Final URL
https://www.nagios.com/
HTTP status
200
HTTP version
HTTP/2
Response time
2.21 s
HTML size
494 KB
Redirect chain
https://nagios.com → https://www.nagios.com/

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Frequently asked questions

What technology does nagios.com use?
nagios.com is built with WordPress, Google Analytics, Cloudflare Analytics, Umami.
Is nagios.com secure (HTTPS)?
Yes. nagios.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 8, 2026.
Who hosts nagios.com?
Hosting provider information for nagios.com is not available yet.
What is nagios.com's SEO score?
nagios.com scored 90/100 for SEO in the latest analysis (excellent).
What is nagios.com's overall website score?
nagios.com has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.