Handful of links : Domain & Site Information

• SANS Internet Storm Center Summarizes: the overall security health of the Internet

Internet Storm Center

• ARIN WHOIS Database Search Provides a mechanism for finding contact and registration information for resources registered with ARIN

Whois-RWS

• Robtex A collection of various online tools such as DNS, whois, blacklist checking, reverse IP

Welcome to Robtex!

• DNS History Historical archive for DNS records.

http://dnshistory.org/

• MultiRBL.valli.org DNS blacklist and Forward Confirmed reverse DNS tool for checking multiple blacklists simultaneously

MultiRBL.valli.org - Blacklist, Whitelist and FCrDNS check tool

• SHODAN Search engine that looks for public service banners

Shodan

• Namedroppers Lists registered domain names that match your search query

Domain Name Search Engine - Namedroppers - Namedroppers.com ®

• Team Cymru Provides charts and graphs on malicious Internet activity, as well as an always up-to-date bogon list (series of IP blocks that should never be routed globally on the Internet

Team Cymru - Unparalleled Threat Intelligence feeds

• URLVoid Allows visitors to submit a domain name and have it scanned by multiple web site reputation engines in order to flag malicious web sites

Check if a Website is Malicious/Scam or Safe/Legit | URLVoid

• Google Safe Browsing Enter an address at the end of the URL to see whether the site engages in malicious behavior such as drive by downloads

Google Transparency Report

• urlQuery.net Allows you to process the response to a URL request to see if there is anything malicious. Very detailed

http://www.urlquery.net/

• Unmask Parasites Submit a web site name and have the page scanned for external references and suspicious scripts

Website Security Check - Unmask Parasites

• LongURL Expand the shortened URLs that were compacted by any one of hundreds of different URL shortening services

URL Expander - Unshorten Any Short URL To A Long URL

• Web Sniffer Allows you to view the HTTP requests and responses of a site without visiting it

View HTTP Request and Response Header

• SSL Labs SSL test for websites, allowing you to verify SSL metrics for a web site

SSL Server Test