SEO for Chrome
Pros:
- Reports on a ton of different SEO stats
Cons:
- Slow
- Frequently breaks for random data points
SEOMoz Mozbar
Pros:
- Tons of great information in sexy interface
Cons:
- Need SEOMoz Pro account to get all the data
META SEO inspector
Pros:
- Lightweight and reports very useful information
- They built-in my Ad Sniffer plugin
Cons:
- Ugly terminal style interface
SEOQuake Lite
Pros:
- Lightweight – includes two important data points: Google PageRank & Alexa Rank
Cons:
- No MozRank or SEMRush data (which is weird since SEOQuake owns SEMRush)
Sorezski SEO Plus
Pros:
- Tons of useful data in a sexy interface
Cons:
- Takes up too much space and requires too many clicks to access all the information
SERP Preview Tool
Pros:
- Great preview of SERP listing for given page
- Allows you to enter your own info to optimize listing
- Can test what it would look like for a given search query
Cons:
- That’s all it does
WooRank
Pros:
- Allows you to easily run a WooRank report for the site you’re on
Cons:
- Not really an extension, just opens up the web-based report
