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6502.org

6502.org: The 6502 Microprocessor Resource

Last scanned Aug 24, 2026, 1:22 PM

83

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

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • No H1 heading found

    SEO

    Add 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

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • 1 cookie without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

+4 more issues — details in the sections below.

70

SEO

5 issue(s) found

100

Performance

137 ms

75

Security

HTTPS & header checks

90

Accessibility

1 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

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.

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

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
og:url

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

CDN provider
IP address
178.105.206.222
ASN
AS24940 (HETZNER-AS - Hetzner Online GmbH, DE)

DNS records

TypeValue
A
  • 178.105.206.222
AAAA
MX
  • naberezny.com
TXT
  • v=spf1 mx a ~all
NS
  • helium.ns.hetzner.de
  • oxygen.ns.hetzner.com
  • hydrogen.ns.hetzner.com
CAA
CNAME
IPv6 supportNo

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

See something wrong on this report? Request a correction

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.