www.acunetix.com/vulnerability-scanner/security-scanner/

Acunetix is a website security scanner which allows you to test web sites and web applications for a wide range security holes and potential vulnerabilities. Identify web vulnerabilities before hackers do!

• Automatically checks your ...
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scan.cryptophp.com

CryptoPHP is a malicious script that provides remote attackers with the ability to execute rogue code on Web servers and to inject malicious content into websites that are hosted on them. According to Dutch security firm Fox-IT, which published a repor ...

inetworktools.com/en/

iNetworkTools.com provides Free & Unlimited data services on Domain Names & IP Address.

• Web Sniffer - Use this tool to websniff almost any URLs. Get meta keywords, keywords density and tabified source code.
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www.hackerguardian.com/hackerguardian/buy/pci-free-scan.html

Get Free PCI Scan from Hackerguardian for 90 days and avoid penalties by following payment card industry security standards.

ismysite.hackedornot.com/scan-my-site.html

Online website scanner - check whether website is hacked or not. We can cleanse your website. Website Protection, Malware Removal, and Blacklist Prevention.

www.qualys.com/forms/freescan/

FreeScan performs comprehensive vulnerability scanning on one of your company's websites or publicly facing IP addresses — and lets you know instantly where you're at risk. FreeScan includes: Perimeter scan for security vulnerabilities, Scan for ...

add0n.com/security-plus.html

Security Plus is a browser extension that provides free checking of urls for viruses. It uses up to 64 different antivirus products and scan engines to check for viruses that the user's own antivirus solution may have missed, or to verify against any f ...

sitecheck.sucuri.net

Web site security monitoring and malware removal. Enter a URL (ex. sucuri.net) and the Sucuri SiteCheck scanner will check the website for known malware, blacklisting status, website errors, and out-of-date software.

www.virustotal.com

VirusTotal is a free service that analyzes suspicious files and URLs and facilitates the quick detection of viruses, worms, trojans, and all kinds of malware.