Is Mersenne.org Legit or Not?
Our checks and user reviews suggest this website is legitimate. Still use normal caution when paying online.
Last checked October 28, 2026
Summary
Mersenne.org has a trust score of 83 out of 100. The domain was registered on December 3, 1996, about 29.9 years ago, and the site uses a valid HTTPS certificate. No customer reviews have been posted yet.
How the site describes itself: "Great Internet Mersenne Prime Search - Finding world record primes since 1996. GIMPS is an organized search for Mersenne prime numbers using provided free software."
What we found
- +10 Valid HTTPS certificate
- +25 Domain registered 30+ years ago
- −5 No contact details found on the homepage
- +3 Privacy, terms or refund policies are linked
Every website starts at 50 points. How the score works
Company and contact
- Company
- Not published
- Not found
- Phone
- Not found
- Policies linked
- Privacy policy, Terms
- Social profiles
- None found
Domain and security
- Registered
- Dec 3, 1996
- Domain age
- 29.9 years
- Expires
- Dec 2, 2026 (in 26 days)
- Registrar
- GoDaddy.com, LLC
- Registry status
- Transfer lock on (protects against hijacking)
- HTTPS
- Valid certificate
- Certificate issuer
- GoGetSSL until Nov 14, 2026
- DNS / hosting
- GoDaddy
- IP address
- 209.147.127.187
- Email on domain
- Set up
- Google Safe Browsing
- Not checked
Connected websites
Redirects, shared servers, the same operator and links can reveal a network of related sites.
Links to (10)
External websites linked from the homepage.
Mersenne.org reviews
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What people search about Mersenne.org
The most common searches about Mersenne.org, so you can see what other shoppers want to know.
- mersenne prime
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Is Mersenne.org legit, safe or a scam?
Is Mersenne.org legit?
Based on our checks, Mersenne.org scores 83 out of 100, which we rate as "Likely Legit". The domain has been registered for 29.9 years. There are no customer reviews yet, so we cannot confirm what buying from them is like.
Is Mersenne.org safe to buy from?
Mersenne.org uses a valid HTTPS certificate, so payment details are encrypted on the way to the site. Whatever the score, pay with a card or PayPal so you can dispute the charge if something goes wrong.
Is Mersenne.org real or fake?
Mersenne.org looks like a real, established website: its domain is 29.9 years old.
Is Mersenne.org a scam?
We found no strong signs that Mersenne.org is a scam, but no automated check is perfect. Read the reviews for real experiences.
Is Mersenne.org trustworthy?
There are not enough customer reviews yet to judge. Our automated checks give it 83 out of 100.
Who owns mersenne.org?
The website does not clearly publish who operates it, and the registry record is private. The domain is registered through GoDaddy.com, LLC.
How can I contact Mersenne.org customer service?
We did not find contact details on the homepage of mersenne.org. Be careful with support numbers found elsewhere online, which are sometimes run by scammers.