Unique visitors????

https://makeawebsitehub.com/find-blog-traffic/

http://clicky.com/101006121

The clicky tracking code result can be seen on bottom of this page ;-)

You can choose between several options like masking visitors IP, last octect.

They also have lot of tools:

https://clicky.com/help/apps-plugins

https://clicky.com/whitelabel/

http://clicky.com/101006121

SEO and not Tools from trafficestimate.com

http://tools.trafficestimate.com/

First you can check if they have enough data to estimate how much traffic has your site:

http://www.trafficestimate.com/ 

http://www.trafficestimate.com/howtoscomos.blogspot.com.es 

Yeah, you have to type just your domain without https://" on their box 

And about the tools, there are too many and free:

	Multiple Keyword Search Engine Position Check a website's search engine position with multiple keywords.
	Multiple Website Search Engine Position Check multiple websites' search engine position with a single keyword.
	Search Engine Position Checker Check the position of a single site with a single keyword on various search engines.
	Site Rank Checker Check PageRank and Alexa Rank for a site.

	Reverse IP/Look-up Script Resolve a host to an IP address.
	Ping Script Ping a domain or IP address to find the response time.
	IP Locator (country) Locate the country an IP address resides in.

	HTTP Header Extractor Extract the HTTP Headers of a web page.
	HTTP Header Viewer View the headers of the site of your choice.
	Meta Tag Extractor Extract meta-tags information from a web page.
	Meta-Tag Generator Generate meta-tags for your site.

	List Cleaner Clean and remove duplicates from a text list.
	Unix Time Converter Convert UNIX internal time formats to a date or vice versa.
	Google Banned Checker Check to see if a website is banned from Google.

Source Code Viewer View the source code of a website. MD5 Encrypter Encrypt text with MD5 encoding. HTML Encrypter Encrypt your HTML code to hide it from visitors. Website Speed Test Find out how fast your website loads. Single-Level Sitemap Creator Makes an XML sitemap of the page of your choice. Keyword Density Checker Check the density of different keywords at the site of your choice. Site Spider Viewer Find various SEO statistics and spider information about your site. Search Engine Listing Preview Preview what your site's listing will look like Website Resolution Viewer View your website at a variety of common resolutions. Text Website Viewer View your website in text-only mode, just as the search engines see it. Automated Search Engine Submitter Submits your website to 19 of the top search engines. Link Analyzer Analyze incoming and outgoing links. Website Status Checker Check whether the five major ports are responding. Countdown Generator Copy and paste Javascript code to count down to the date and time of your choice.