commandlinefu.com
All commands
Last scanned Aug 24, 2026, 1:23 PM
Overall score
Fair
Summary
A repository for the most elegant and useful UNIX commands. This website uses Apache. SEO is fair (65/100) and accessibility is fair (60/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.
A repository for the most elegant and useful UNIX commands. Great commands can be shared, discussed and voted on to provide a comprehensive resource for working from the command-line
Top issues to fix
11 issues found · 4 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.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
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.
+5 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
1.21 s
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Organization
Company details published in this site's own structured data.
A repository for the most elegant and useful UNIX commands. Great commands can be shared, discussed and voted on to provide a comprehensive resource for working from the command-line
Meta tags
- Title
- All commands
- Description
- A repository for the most elegant and useful UNIX commands. Great commands can be shared, discussed and voted on to provide a comprehensive resource for working from the command-line
- Canonical
- Language
- en
- Charset
- ISO-8859-1
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- 18.211.17.225
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS |
|
| CAA | — |
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Amazon
- Subject
- bootsnipp.com
- Valid from
- Oct 29, 2025
- Valid to
- Nov 26, 2026
- Days until expiry
- 93
- SAN domains
- bootsnipp.com, danstools.com, *.henkan-muryo.com, hexcolortool.com, htaccessredirect.net, cssfontstack.com, *.cleancss.com, *.conversoes.org, *.cssfontstack.com, konvertierung.org, *.bootsnipp.com, *.url-encode-decode.com, files-conversion.com, *.website-performance.org, *.htaccessredirect.net, *.unixtimestamp.com, *.regextester.com, *.elconvertidor.com, md5hashgenerator.com, favicon-generator.org, website-performance.org, *.hexcolortool.com, konvertor.org, *.zhuan-huan.com, *.files-conversion.com, *.danstools.com, *.commandlinefu.com, *.rgbtohex.net, tahwil.net, *.md5hashgenerator.com, cleancss.com, conversoes.org, url-encode-decode.com, *.konvertierung.org, *.regexpal.com, henkan-muryo.com, regexpal.com, *.konvertor.org, *.convertitore.net, *.tahwil.net, commandlinefu.com, rgbtohex.net, regextester.com, elconvertidor.com, unixtimestamp.com, convertitore.net, zhuan-huan.com, *.favicon-generator.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 4
Links
137 internal · 6 external · 0 broken
Images
3 total · 3 missing alt
Scripts / Styles
17 scripts · 7 stylesheets
JS / CSS size
531 KB · 42.4 KB
Page size
138 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 4
- sitemap.xml
- Found
- URLs in sitemap
- 85
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
Accessibility issues
- Over half of images are missing alt text
- No H1 heading found
Scan details
- Requested URL
- https://commandlinefu.com
- Final URL
- https://www.commandlinefu.com/commands/browse
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 1.21 s
- HTML size
- 138 KB
- Redirect chain
- https://commandlinefu.com → http://www.commandlinefu.com/ → https://www.commandlinefu.com/ → http://www.commandlinefu.com/commands/browse → https://www.commandlinefu.com/commands/browse
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does commandlinefu.com use?
- commandlinefu.com is built with PHP, Bootstrap, jQuery, Google Analytics, Google Ads, Apache.
- Is commandlinefu.com secure (HTTPS)?
- Yes. commandlinefu.com uses TLS 1.2 with a certificate issued by Amazon, valid until Nov 26, 2026.
- Who hosts commandlinefu.com?
- Hosting provider information for commandlinefu.com is not available yet.
- What is commandlinefu.com's SEO score?
- commandlinefu.com scored 65/100 for SEO in the latest analysis (fair).
- What is commandlinefu.com's overall website score?
- commandlinefu.com has an overall SiteGraph score of 70/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card