Duplicate content is the worst enemy for any blog and it can cost you a lot if google founds duplicate content in your blog. Your blog can either get removed from the search engine or its ranking can be dropped for all your targeted keywords.
As you know TechMaish was a guest posting blog where most of the posts are contributed by the guest bloggers, internet marketers and business owners. I always checked my articles before publishing, however as you know most of the people are hiring writers to write articles on different topics and then publish on guest posting blogs.
A article written by a freelancer has always the issue of duplicate content, because of excessive load on the writer. OR the quality factor can be ignored by the writer which makes the article unprofessional and promotional one. I always checked my published articles on regularly basis to check if any of my blog article contain duplicate content. I am using different tools to detect duplicate content and some of them are great tools available for free. Although the tools are free, but if you buy a premium package then you can get accurate and detailed result for your searches.
Four Free Duplicate Content Checker Tools
One of my favorite, reliable and accurate tool is copyscape, which provides me the ability to search published and unpublished articles against duplicate content issue. The tool will search all pdf files, internet websites, blogs, forums etc and find the locations with links from where a article is copied.
The tool is free, but in free package you can only search already published articles through its link. If you want to check a unpublished article then you need to buy credits. 1 credit is charged for checking a article having maximum 2000 words. You can buy 200 credits for just $10 ($.05 per credit).
If you deal with high volume of content then you can get premium API to integrate the tool in your CMS and search all the articles inside your blogging platform.
Another free tool where you can check unpublished articles for free is duplichecker. You can either paste the article or upload the .txt file to let the tool search the article and find out if it is copied or a unique one. It can use Google, Yahoo and MSN indexer to search the duplication on internet. However the recommended indexer is Google.com
This tool has 3 option that allows you to detect duplicate content issue. You can search the whole text, or URL of a article or you can upload a .txt, .doc, .rtf etc files. More then 190 languages are supported by the tool and the accuracy of the result is sure.
This tool allows you to paste a article having maximum 25,000 characters. It is one of the best alternative of copyscape tool having advance features. Get email alerts when your article is copied, work with yahoo, bing and google indexer.
They also offer premium membership where you can buy 60,000 characters for just $1 (around 12 searches) and 1000,000 characters for just $10 (around 220 searches).
Hope these tools will help you to check an unpublished article or published one to protect your blog from duplicate content issue. Let me know if you know about any other reliable and free tool.