Wincher is an extremely simple, flexible and powerful tool for tracking your SEO progress. Track your rankings, optimize your pages, keep an eye on your competitors and find clever ways to cut down your costs and increase your traffic.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
One Hour Indexing - One Hour Indexing is a powerful, automated service that indexes and pings your backlinks. It's 100% Google safe and gives guaranteed ranking results
Lumar - (Previously DeepCrawl) Hosted SEO spider to analyze and find problems with websites.
Ahrefs - Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!
Website Checker Tech - WebsiteChecker.Tech is SaaS tool that detects SEO and availability issues of your website, making it easier for you to fix them.
Schema.org - Schema.org provides schemas for structured data on the Internet, on web pages, in email messages, and beyond.