clamwin.com
Free Antivirus for Windows - Open source GPL virus scanner
Last scanned Aug 24, 2026, 1:22 PM
Overall score
Fair
Summary
Looking for free Open Source Antivirus for Windows? Download ClamWin Free Antivirus and get free virus scanning and free virus definition updates. This website uses Nginx hosted on ORACLE-BMC-31898 - Oracle Corporation, US. SEO is fair (60/100) and accessibility is good (75/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.
Looking for free Open Source Antivirus for Windows? Download ClamWin Free Antivirus and get free virus scanning and free virus definition updates.
- United States
- Hosted on ORACLE-BMC-31898 - Oracle Corporation, US
Top issues to fix
13 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.
Missing viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
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.
+7 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
314 ms
Security
HTTPS & header checks
Accessibility
3 issue(s) found
Organization
Company details published in this site's own structured data.
Looking for free Open Source Antivirus for Windows? Download ClamWin Free Antivirus and get free virus scanning and free virus definition updates.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Free Antivirus for Windows - Open source GPL virus scanner
- Description
- Looking for free Open Source Antivirus for Windows? Download ClamWin Free Antivirus and get free virus scanning and free virus definition updates.
- Canonical
- Language
- Charset
- iso-8859-1
- Viewport
- Robots meta
- index, follow
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- ORACLE-BMC-31898 - Oracle Corporation, US
- CDN provider
- —
- IP address
- 169.224.230.189
- ASN
- AS31898 (ORACLE-BMC-31898 - Oracle Corporation, 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
- clamwin.com
- Valid from
- Jul 6, 2026
- Valid to
- Oct 4, 2026
- Days until expiry
- 40
- SAN domains
- clamwin.com, de.clamwin.com, es.clamwin.com, forums.clamwin.com, fr.clamwin.com, it.clamwin.com, nl.clamwin.com, ru.clamwin.com, www.clamwin.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 0
Links
19 internal · 14 external · 1 broken
Images
8 total · 0 missing alt
Scripts / Styles
11 scripts · 3 stylesheets
JS / CSS size
844 KB · 7.0 KB
Page size
14.8 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
- Missing <html lang> attribute
- Missing viewport meta tag
Scan details
- Requested URL
- https://clamwin.com
- Final URL
- https://clamwin.com
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 314 ms
- HTML size
- 14.8 KB
- Redirect chain
- https://clamwin.com
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does clamwin.com use?
- clamwin.com is built with Joomla, Google Analytics, Google Ads, Nginx.
- Is clamwin.com secure (HTTPS)?
- Yes. clamwin.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 4, 2026.
- Who hosts clamwin.com?
- clamwin.com is hosted on ORACLE-BMC-31898 - Oracle Corporation, US.
- What is clamwin.com's SEO score?
- clamwin.com scored 60/100 for SEO in the latest analysis (fair).
- What is clamwin.com's overall website score?
- clamwin.com has an overall SiteGraph score of 74/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card