Ping-O-Matic is described as 'We regularly check downstream services to make sure that they're legit and still work. So while it may appear like we have fewer services, they're the most important ones' and is a SEO tool in the business & commerce category. There are four alternatives to Ping-O-Matic, not only websites but also apps for. The best Ping-O-Matic alternative is Ping.in, which is free. Other great sites and apps similar to Ping-O-Matic are TotalPing!, Autopinger and pingoat.
Blog ping service that pings or notifies Weblog Services such as Blog Search Engines and blog directories that your blog has been updated. Thus enabling them to index your blog fast and make your content available for a larger audience.
Autopinger is a free service to help you ping your blogs and podcasts to most available blog/podcast search engines and aggregators remotely and automatically.
