When we talk about search engines, first and for somebody only word that comes in mind is Google. But there are lots of smaller search engines which have a solid user base and can deliver cost effectively visits to your site. So it pays off to submit your site also to the little league. Many little ones adds up!
Below is a list of independent search engines you should submit your site:
Best part is that you can do it in one place and for free! CLICK HERE TO SUBMIT YOUR SITE TO 20+ SEARCH ENGINES
Also backlinks to your site are very important for search engine optimization purposes. Freewebsubmission have a list of top 50 search engines and directories where you can submit your site. Domain authority DA score is an important factor when considering where to submit your site. Aim to submit your site to sites where DA score is atleast 40. Domain authority checker is founded here: Seoreviewtools
Also Backlinks are important for SEO purposes. You can submit your site automatically to over 100 sites to get backlinks with this tool: Connectionbuilder