Check DNS Propagation worldwide. DNS Checker provides name server propagation check instantly. Changed nameservers so do a DNS lookup and check if DNS and nameservers have propagated.

Why No Padlock? - Why is my SSL web page insecure? Find the culprit!

Free online heuristic URL scanning and malware detection. Scan websites for malware, exploits and other infections with quttera detection engine to check if the site is safe to browse. Check website for malicious pages and online threats. Monitor websites/domains for web threats online. Security tools for webmasters.

Free Online Website Scanner. Check your website for hidden malware, viruses and Spam. Fast, efficient removal provided for affordable fixed price - US$110!

GTmetrix is a free tool that analyzes your page's speed performance. Using PageSpeed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.

Check the contrast of your color design for accessibility base on Web Content Accessibility Guideline (WCAG)

AChecker is a Web accessibility evalution tool designed to help Web content developers and Web application developers ensure their Web content is accessible to everyone regardless to the technology they may be using, or their abilities or disabilities.

Research domain ownership with Whois Lookup: Get ownership info, IP address history, rank, traffic, SEO & more. Find available domains & domains for sale.

Check your website security for free with Sucuri Sitecheck. Sitecheck scans for malware, viruses, errors, blacklist status, and out-of-date software & plugins.