Mailtester.com vs. IPQS

Check if an e-mail address is valid or not. Our email list checker will lookup and check emails to see if they are valid. We have Mailchimp omnivore checker and other integrations like MailChimp, Activecampaign

IPQS is a fraud prevention and threat intelligence platform that helps businesses detect and stop fraud in real time. Device fingerprinting, IP reputation analysis, and email and phone validation combine into actionable risk signals that prevent account takeover, fake account creation, payment fraud, bot abuse, and other forms of online fraud. The difference is the data. Over 10,000 honeypot sensors across the web feed exclusive intelligence on human-like bots, residential proxies, low-quality emails, and stolen user data — updated continuously rather than on a monthly refresh.