Screaming Frog SEO Spider - The Screaming Frog SEO Spider is a small desktop program (PC or Mac) which crawls websites’ links...
Ping-O-Matic - Service to update different search engines that your blog has updated.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
TotalPing! - Promote your blog with TotalPing!
Pulno - SEO Audit and Website Analysis. Pull up your SEO.
Pingler - Pingler is a tool that allows you to ping your blog or website, so that followers can know if your site is online after any update, maintenance, etc.