what is seo tools and its work?

[Nancy]

1) Webmaster Tools
Perhaps the best way to understand the way Google sees your site is to ask Google. Google’s Webmaster Tools is novice-friendly with robust resources explaining the fundamentals of Google search. Plus, it's free and works for mobile sites! For example, the Google Friendly Site is a great starting point for anyone needing a primer on how Google views pages. It succinctly explains a few of the basic parameters involved in Google’s search algorithms. With this tool, you're able to see exactly which keywords Google is seeing when it crawls your website -- the list you see above is just a snapshot. If you’re not seeing the keywords you anticipated, you know to start creating more quality content around the keywords you're targeting. You can also see how many search queries and click-throughs each of the keywords is receiving. If you're not seeing the rankings and CTR you were hoping for, this tool provides excellent tips to help you improve -- just don't expect them to reveal all their secrets.

2) Screaming Frog SEO Spider
The Screaming Frog SEO Spider is a search marketer's best friend. Designed specifically for the SEO-minded, this program crawls the websites you specify examining the URLs for common SEO issues in an attempt to make site optimization easier. This program simplifies and expedites an otherwise time consuming process -- especially for larger websites -- which would otherwise take hours or days to manually evaluate.

The Java program is fairly intuitive with easy to navigate tabs. Additionally, you can export any or all of the data into Excel for further analysis. So say you're using Optify, SEOmoz, or RavenSEO to monitor your links or rankings for specific keywords -- you could simply create a .csv file from your spreadsheet, make a few adjustments for the proper formatting, and upload it to those tools. You’ve just taken a few minutes to compile massive amounts of data that may otherwise have taken hours, or even days!

3) Check My Links Broken
Link Checker
A link building campaign with a broken link is a huge bummer. Check My Links Broken Link Checker can help ensure the accuracy of links -- whether external or internal -- of a webpage, giving a publisher or editor the opportunity to make corrections before the page is live.

Think about a site like Wikipedia, for example -- they must have tons of links! Actually, through a combination of internal and external links, a single Wikipedia post on Kiefer Sutherland has 599 links. Within moments, Check My Links scanned all of the links, finding just five that were broken.

4) SEOmoz PRO Tools
SEOmoz PRO Tools is designed for small and large businesses alike and can help publishers better understand their Google rankings. Be forewarned that it can take up to 7 days to get the full report, though, so this isn't good for the SEO in a pinch.

5) HubSpot's Page Grader
A paid tool that comes with a HubSpot marketing software subscription, the Pages tool helps you, well, measure how effective the pages on your website are. The tool both evaluates the SEO performance of each page on your website, and provides actionable advice to improve underperforming pages. On this page, for example, we would know that our meta description needs to be fixed so the correct information is being pulled into the SERPs, but the rest of our meta data is a-okay.

6) HubSpot's Marketing Grader
If you’re wondering if your website and social media efforts are making the grade, HubSpot’s Marketing Grader is an excellent free tool. As its name implies, this tool gives your website and up to two of your competitors a grade based upon how Google views the site. It allows you to differentiate between B2B and B2C, and take a look at your social media activity, as well. It’s a pretty cool tool that also offers tips on how to improve your score -- and thus, your website and marketing.