Summary
- HTTP status
- 200
- IP address
- 188.114.96.2, 188.114.97.2, 2a06:98c1:3121::2, 2a06:98c1:3120::2
- ASN
- —
- Hosting provider
- —
- Country
- —
- Title
- HarvardChallenge.com — Harvard Daily Challenge, Streaks & Leaderboard
- Description
- Harvard challenges: daily quiz rounds, streaks and a live leaderboard on HarvardChallenge.com. Free to play — post your score and claim your rank.
- Language
- en
- Server
- cloudflare
- Generator
- —
- Certificate
- ValidLet's Encrypt
- Sitemap
- Present
- Domain name
- harvardchallenge.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 Let's Encrypt: valid for a few months, it is renewed automatically.
- Certificate authority
- Let's Encrypt (YE2)
- Validation type
- Domain validation (DV)
- Status
- Valid
- Covered domains
- *.harvardchallenge.com, harvardchallenge.com
- Valid from
- August 7, 2026
- Valid until
- November 5, 2026 (expires in 34 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 declares 1 sitemap.
| File | Content | Last modified |
|---|---|---|
| https://harvardchallenge.com/sitemap.xml | 6 pages | October 2, 2026 |
Redirects
The website address does not redirect.
Outgoing links
The home page links to 18 other websites.