explainshell.com
explainshell.com - match command-line arguments to their help text
Last scanned Aug 24, 2026, 1:22 PM
Overall score
Fair
Summary
match command-line arguments to their help text. This website uses jQuery hosted on Cloudflare behind Cloudflare CDN. SEO is fair (60/100) and accessibility is good (80/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
match command-line arguments to their help text
- United States
- Hosted on Cloudflare
Top issues to fix
12 issues found · 3 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.
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.
+6 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
110 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Organization
Company details published in this site's own structured data.
match command-line arguments to their help text
Meta tags
- Title
- explainshell.com - match command-line arguments to their help text
- Description
- match command-line arguments to their help text
- Canonical
- Language
- Charset
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 104.21.35.122
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- explainshell.com
- Valid from
- Aug 18, 2026
- Valid to
- Nov 16, 2026
- Days until expiry
- 83
- SAN domains
- explainshell.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 1
Links
12 internal · 1 external · 1 broken
Images
0 total · 0 missing alt
Scripts / Styles
8 scripts · 5 stylesheets
JS / CSS size
3.9 KB · 0 B
Page size
10.9 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 9
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
- No H1 heading found
- Missing <html lang> attribute
Scan details
- Requested URL
- https://explainshell.com
- Final URL
- https://explainshell.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 110 ms
- HTML size
- 10.9 KB
- Redirect chain
- https://explainshell.com
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Frequently asked questions
- What technology does explainshell.com use?
- explainshell.com is built with Bootstrap, jQuery.
- Is explainshell.com secure (HTTPS)?
- Yes. explainshell.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Nov 16, 2026.
- Who hosts explainshell.com?
- explainshell.com is hosted on Cloudflare, behind Cloudflare CDN.
- What is explainshell.com's SEO score?
- explainshell.com scored 60/100 for SEO in the latest analysis (fair).
- What is explainshell.com's overall website score?
- explainshell.com has an overall SiteGraph score of 75/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card