Summary
- HTTP status
- 200
- IP address
- 104.21.10.87, 172.67.162.191, 2606:4700:3035::6815:a57, 2606:4700:3033::ac43:a2bf
- ASN
- —
- Hosting provider
- Cloudflare, Inc.
- Country
- US
- Title
- Tau Day | No, really, pi is wrong: The Tau Manifesto by Michael Hartl
- Description
- The Tau Manifesto is dedicated to one of the most important numbers in mathematics, perhaps the most important: the circle constant relating the circumference of a circle to its linear dimension. For millennia, the circle has been considered the most perfect of shapes, and the circle constant captures the geometry of the circle in a single number.
- Language
- en
- Server
- cloudflare
- Generator
- —
- Certificate
- ValidGoogle Trust Services
- Sitemap
- Missing
- Domain name
- tauday.com
SSL/TLS certificate
The SSL/TLS certificate encrypts exchanges between visitors and the website (HTTPS) and proves its identity. It is issued by a certificate authority after a more or less thorough check: of the domain name only (DV), of the organization that owns it (OV), or extended validation (EV).
Free certificate issued by Google Trust Services: valid for a few months, it is renewed automatically.
- Certificate authority
- Google Trust Services (WE1)
- Validation type
- Domain validation (DV)
- Status
- Valid
- Covered domains
- www.tauday.com
- Valid from
- September 4, 2026
- Valid until
- December 3, 2026 (expires in 61 days)
- Protocol
- TLSv1.3
- Key
- ECDSA 256 bits
Sitemap
A sitemap lists the pages of a website to help search engines discover them. It can have any name when it is declared in the robots.txt file.
The robots.txt file does not declare any sitemap: the usual locations were checked.
No sitemap found.
Redirects
- 301 https://tauday.com/
- 200 https://www.tauday.com/ — Final page
Outgoing links
The home page links to 12 other websites.