Best Site for accurate Keyword Rankings on your site

good day, i usually use google analytics to rank my keywords, but i see that analytics tool is off like 50 positions off. is there any more accurate sites out there? please let me know if you guys know a better way of checking your rankings. keep in mind my rankings are in the 200 and some in the 100s. so i would need some site or tool that can see that exact number.
Thank You

See original post by eddied1990