Dataweaz

backoftheenvelope.science

Summary

URL
https://backoftheenvelope.science/
HTTP status
200
IP address
185.104.29.116
ASN
—
Hosting provider
—
Country
—
Title
Back of the enveloppe science - Collection of real-life science calculations
Description
Collection of real-life science calculations
Language
en
Server
Apache · PHP/7.4.33
Generator
WordPress 6.8.10
Certificate
ValidLet's Encrypt
Sitemap
Present
Domain name
backoftheenvelope.science

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 Let's Encrypt: valid for a few months, it is renewed automatically.

Certificate authority
Let's Encrypt (YR1)
Validation type
Domain validation (DV)
Status
Valid
Covered domains
backoftheenvelope.science, www.backoftheenvelope.science
Valid from
August 27, 2026
Valid until
November 25, 2026 (expires in 53 days)
Protocol
TLSv1.3
Key
RSA 4096 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 declares 1 sitemap.

FileContentLast modified
https://backoftheenvelope.science/sitemap_index.xmlIndex of 5 sitemapsJune 27, 2025

Redirects

The website address does not redirect.

Outgoing links

The home page links to 28 other websites.