Dupli Checker provides a lot of free domain and SEO tools.
Pros:
- Free Access
- User-Friendly Interface
- Comprehensive Tools
Cons:
- Ads and Pop-Ups: The free version has quite a few ads, which can be distracting.
- Limited Usage: There are restrictions on the number of checks you can perform daily, which can be limiting for heavy users.
- Accuracy Issues: Occasionally, the plagiarism checker misses some duplicate content.