Webmaster Tools.

There are 3 search engines that allow to submit sitemaps and analyze your site performance based on their own ruleset. These are powerful SEO tools in itself because the data comes straight from the source. Important to note here that with Bing that they provide the data for Yahoo as well. Data mine search results that apply to your website and the number of clicks you get from search results. As well as showing the number of pages from your website that have been indexed or ignored or have errors. And do not forget to submit your site map so the crawl bots will visit your site sooner than later.

• Google Search Console: Google Search Console
  The biggest search engine and a must if you want to start with SEO if you want to improve your traffic with big data straight from the source.
• Bing Webmaster: Bing Webmaster
  Much smaller than Google and they still use meta tags however it can still give you a good amount of traffic.
• Yandex Webmaster: Yandex Webmaster
  The Russian search engine they offer their services in English as well and a great way to reach out to a Russian audience.