Domain report
quant67.com
quant67.com ranks in the top 1.47% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 1 distinct host observed under it.
Connectivity
#1,961,816harmonic-centrality rank
- Top percentile
- 1.47%
- Hosts observed
- 1
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://quant67.com/ answered with HTTP 200.
DNS records
- A
- 8.134.72.175
- AAAA
- No records found.
- MX
- 38 route2.mx.cloudflare.net.
- 44 route3.mx.cloudflare.net.
- 56 route1.mx.cloudflare.net.
- NS
- arya.ns.cloudflare.com.
- donald.ns.cloudflare.com.
Live preview
This is a live, sandboxed embed of quant67.com — not a copy. What it shows can change any time the site itself does.
Domain registration (WHOIS / RDAP)
- Registrar
- Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)
- Registered
- 2013-07-19
- Expires
- 2032-07-19
- Last changed
- 2023-05-26
Nameservers: ARYA.NS.CLOUDFLARE.COM, DONALD.NS.CLOUDFLARE.COM
Status: active
SSL certificate
Certificate Transparency lookup failed (HTTP 429).
HTTP & security headers
Response
- Server
- cloudflare
- Content-Type
- text/html
- Cache-Control
- Not sent
- Content-Encoding
- Not sent
Security
- Content-Security-Policy
- Not sent
- Strict-Transport-Security
- Not sent
- X-Frame-Options
- Not sent
- X-Content-Type-Options
- Not sent
- Referrer-Policy
- Not sent
- Permissions-Policy
- Not sent
Redirect chain
- 1.
http://quant67.com/HTTP 200
Meta tags
- Title
- 土法炼钢 · 系统与基础设施
- Description
- Linux 内核、存储与网络、可观测性、系统架构与大模型基础设施的工程笔记：机制拆解、踩坑复盘与可核对证据，少空谈。
- Canonical
- https://quant67.com/
- Robots
- Not set
- Generator
- Not set
- Open Graph title
- 土法炼钢 · 系统与基础设施
- Open Graph description
- Linux 内核、存储与网络、可观测性、系统架构与大模型基础设施的工程笔记：机制拆解、踩坑复盘与可核对证据，少空谈。
- Open Graph image
- Not set
- Open Graph type
- website
- Twitter card
- summary
- Twitter title
- 土法炼钢 · 系统与基础设施
- Twitter image
- Not set
robots.txt
- Disallow rules (User-agent: *)
- 0
- Disallow rules (other agents)
- 0
Sitemap declared:
https://quant67.com/sitemap.xml
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
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Similar connectivity
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