6502.org
6502.org: The 6502 Microprocessor Resource
Last scanned Aug 24, 2026, 1:22 PM
Overall score
Great
Summary
Information, links, and projects for enthusiasts of the 6502 microprocessor. This website uses Apache hosted on HETZNER-AS - Hetzner Online GmbH, DE. SEO is fair (70/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing canonical link.
Information, links, and projects for enthusiasts of the 6502 microprocessor.
- Germany
- Hosted on HETZNER-AS - Hetzner Online GmbH, DE
Top issues to fix
10 issues found · 2 high priority
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.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
+4 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
137 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Information, links, and projects for enthusiasts of the 6502 microprocessor.
Contact
Email, phone, and address published on this site's own pages.
- mike@naberezny.com
Meta tags
- Title
- 6502.org: The 6502 Microprocessor Resource
- Description
- Information, links, and projects for enthusiasts of the 6502 microprocessor.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- HETZNER-AS - Hetzner Online GmbH, DE
- CDN provider
- —
- IP address
- 178.105.206.222
- ASN
- AS24940 (HETZNER-AS - Hetzner Online GmbH, DE)
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
- 6502.org
- Valid from
- Jul 6, 2026
- Valid to
- Oct 4, 2026
- Days until expiry
- 40
- SAN domains
- 6502.org, archive.6502.org, cbm.6502.org, forum.6502.org, www.6502.org
Security headers
- Strict-Transport-SecurityEnabled
- 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 3 · H3 0
Links
32 internal · 3 external · 19 broken
Images
5 total · 0 missing alt
Scripts / Styles
2 scripts · 1 stylesheets
JS / CSS size
907 B · 17.3 KB
Page size
8.1 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
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://6502.org
- Final URL
- https://6502.org
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 137 ms
- HTML size
- 8.1 KB
- Redirect chain
- https://6502.org
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Frequently asked questions
- What technology does 6502.org use?
- 6502.org is built with PHP, Apache.
- Is 6502.org secure (HTTPS)?
- Yes. 6502.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 4, 2026.
- Who hosts 6502.org?
- 6502.org is hosted on HETZNER-AS - Hetzner Online GmbH, DE.
- What is 6502.org's SEO score?
- 6502.org scored 70/100 for SEO in the latest analysis (fair).
- What is 6502.org's overall website score?
- 6502.org has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card