linuxcommand.org
LinuxCommand.org: Learn The Linux Command Line. Write Shell Scripts.
Last scanned Jul 26, 2026, 3:19 PM
Overall score
Great
Summary
LinuxCommand.org is a web site that helps users discover the power of the Linux command line. This website uses Nginx hosted on LIGHTEDGE-AS-02 - LightEdge Solutions, US. SEO is good (75/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
LinuxCommand.org is a web site that helps users discover the power of the Linux command line.
- United States
- Hosted on LIGHTEDGE-AS-02 - LightEdge Solutions, US
Top issues to fix
9 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.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
+3 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
232 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
LinuxCommand.org is a web site that helps users discover the power of the Linux command line.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- LinuxCommand.org: Learn The Linux Command Line. Write Shell Scripts.
- Description
- LinuxCommand.org is a web site that helps users discover the power of the Linux command line.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- LIGHTEDGE-AS-02 - LightEdge Solutions, US
- CDN provider
- —
- IP address
- 216.105.38.11
- ASN
- AS11320 (LIGHTEDGE-AS-02 - LightEdge Solutions, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- secureprojects.sourceforge.net
- Valid from
- Jun 15, 2026
- Valid to
- Sep 13, 2026
- Days until expiry
- 49
- SAN domains
- amanda.org, bluefish.openoffice.nl, code.videlibri.de, community.jedit.org, extensions.openoffice.org, extensions.services.openoffice.org, exult.info, freecol.org, freeplane.org, gnomesubtitles.org, gparted.org, gphoto.com, gphoto.org, itksnap.org, jedit.org, libpng.com, libpng.org, linuxcommand.org, net-snmp.org, nsis.io, opencamera.org.uk, openjump.org, openocd.org, plugins.jedit.org, roundup-tracker.org, sbcl.org, secureprojects.sourceforge.net, swig.org, synoboost.com, templates.openoffice.org, templates.services.openoffice.org, update.apexdc.net, usermin.com, videlibri.de, webmin.com, wings3d.com, www.amanda.org, www.bluefish.openoffice.nl, www.exult.info, www.freecol.org, www.freeplane.org, www.gnomesubtitles.org, www.gphoto.com, www.gphoto.org, www.itksnap.org, www.jedit.org, www.libpng.com, www.libpng.org, www.linuxcommand.org, www.net-snmp.org, www.opencamera.org.uk, www.openjump.org, www.openocd.org, www.roundup-tracker.org, www.sbcl.org, www.swig.org, www.synoboost.com, www.usermin.com, www.videlibri.de, www.webmin.com, www.wings3d.com
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 0 · H3 0
Links
6 internal · 4 external · 2 broken
Images
4 total · 0 missing alt
Scripts / Styles
0 scripts · 1 stylesheets
JS / CSS size
0 B · 5.8 KB
Page size
3.9 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- 264
SEO issues
- Title longer than 60 characters
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://linuxcommand.org
- Final URL
- https://linuxcommand.org
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 232 ms
- HTML size
- 3.9 KB
- Redirect chain
- https://linuxcommand.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does linuxcommand.org use?
- linuxcommand.org is built with Nginx.
- Is linuxcommand.org secure (HTTPS)?
- Yes. linuxcommand.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 13, 2026.
- Who hosts linuxcommand.org?
- linuxcommand.org is hosted on LIGHTEDGE-AS-02 - LightEdge Solutions, US.
- What is linuxcommand.org's SEO score?
- linuxcommand.org scored 75/100 for SEO in the latest analysis (fair).
- What is linuxcommand.org's overall website score?
- linuxcommand.org has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card