From d8b38d3dd63dceb15123bf273ac911e3e0c3f4c0 Mon Sep 17 00:00:00 2001 From: eren-s4e Date: Tue, 23 Sep 2025 16:22:54 +0300 Subject: [PATCH] Add S4E.io to Domain and IP Research section --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index 2baecd2..54d7ddc 100644 --- a/README.md +++ b/README.md @@ -869,6 +869,7 @@ algorithms, knowledgebase and AI technology. * [RedirectDetective](http://redirectdetective.com) * [Remote DNS Lookup](https://remote.12dt.com) * [Robtex](https://www.robtex.com) - is an IP address and domain name based researching websites that offers multiple services such as Reverse DNS Lookup, Whois, and AS Macros. +* [S4E.io](https://s4e.io) - Free online tools for domain, IP, and website security analysis. Includes WHOIS lookup, DNS checks and vulnerability scanning. * [SameID](http://sameid.net) * [SecurityTrails](https://securitytrails.com/dns-trails) - API to search current and historical DNS records, current and historical WHOIS, technologies used by sites and whois search for phone, email, address, IPs etc. * [SubDomainRadar.io](https://subdomainradar.io) - Fast subdomain finder with multiple search modes and the most extensive data sources, offering real-time notifications.