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memtest86.com

memtest86.com ranks in the top 0.017% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.

Explore memtest86.com in the Web Graph

Connectivity

#23,025harmonic-centrality rank
Top percentile
0.017%
Hosts observed
2

From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means

HTTPS reachability

200HTTP status

https://memtest86.com/ answered with HTTP 200.

DNS records

A
  • 216.146.215.39
AAAA
No records found.
MX
  • 50 qs4674.pair.com.
NS
  • ns7.ns0.com.
  • dns4.pair.com.

Live preview

This is a live, sandboxed embed of memtest86.com — not a copy. What it shows can change any time the site itself does.

Domain registration (WHOIS / RDAP)

RDAP lookup failed (HTTP 429).

How to read WHOIS and RDAP data

SSL certificate

Certificate Transparency lookup failed (HTTP 429).

How to check when a certificate expires

HTTP & security headers

Response

Server
cloudflare
Content-Type
text/html; charset=UTF-8
Cache-Control
max-age=86400
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
max-age=600; includeSubDomains
X-Frame-Options
Not sent
X-Content-Type-Options
Not sent
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://memtest86.com/HTTP 301

    → https://www.memtest86.com/

  2. 2.https://www.memtest86.com/HTTP 200

Meta tags

Title
MemTest86 - Official Site of the x86 and ARM Memory Testing Tool
Description
MemTest86 is the original self booting memory testing software for x86 and ARM computers. Supporting both BIOS and UEFI, with options to boot from USB and PXE network.
Canonical
Not set
Robots
Not set
Generator
Not set
Open Graph title
MemTest86 - Official Site of the x86 Memory Testing Tool
Open Graph description
MemTest86 is the original self booting memory testing software for x86 and ARM computers. Supporting both BIOS and UEFI, with options to boot from USB.
Open Graph image
https://www.passmark.com/source/img_posts/og_memtest.png
Open Graph type
website
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

Disallow rules (User-agent: *)
7
Disallow rules (other agents)
14

No Sitemap declared in robots.txt.

Technology detected

Best-effort, based on a small set of well-known signals — this may be incomplete.

  • Cloudflarecdn

    Server: cloudflare

  • Google Analyticsanalytics

    Found "googletagmanager.com/gtag/js" in the page's HTML

Related domains

Similar connectivity

Domains ranked just above and below it in the same snapshot.