Domain report
cppstd20.com
cppstd20.com ranks in the top 10.15% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.
Connectivity
- Top percentile
- 10.15%
- 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
https://cppstd20.com/ answered with HTTP 200.
Certificate until 2026-11-30C=US, O=Let's Encrypt, CN=YR2
DNS records
- A
- 217.13.65.154
- AAAA
- 2a00:1030:0:44::d90d:419a
- MX
- 10 no10.unternehmen.com.
- 10 mailgate2.unternehmen.com.
- NS
- ns2.as24956.net.
- ns.gaertner.de.
- AS
- Server in network GDS-1, AS24956 · Germany217.13.65.0/24, which holds 217.13.65.154
Live preview
This is a live, sandboxed embed of cppstd20.com — not a copy. What it shows can change any time the site itself does.
Domain registration (WHOIS / RDAP)
- Registrar
- COREhub, S.R.L.
- Registered
- 2019-09-12
- Expires
- 2028-09-12
- Last changed
- 2026-08-28
Nameservers: NS.GAERTNER.DE, NS2.AS24956.NET
Status: client delete prohibited, client transfer prohibited, client update prohibited
SSL certificate
- Common name
- cppstd20.com
- Issuer
- C=US, O=Let's Encrypt, CN=YR2
- Valid from
- 2026-09-01
- Valid until
- 2026-11-30
Matches cppstd20.com exactly. Source: Certificate Transparency logs (crt.sh).
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
- same-origin
- Permissions-Policy
- Not sent
Redirect chain
- 1.
http://cppstd20.com/HTTP 301→ https://cppstd20.com/
- 2.
https://cppstd20.com/HTTP 200
Meta tags
- Title
- Nicolai M. Josuttis: C++20 - The Complete Guide
- Description
- Programming with C++20 by Nicolai Josuttis
- Canonical
- Not set
- Robots
- Not set
- Generator
- Not set
- Open Graph title
- Not set
- Open Graph description
- Not set
- Open Graph image
- Not set
- Open Graph type
- Not set
- Twitter card
- Not set
- Twitter title
- Not set
- Twitter image
- Not set
robots.txt
cppstd20.com has no robots.txt.
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
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