I want to find internal and external back-links for each urls of sitemap.xml.
I could get this with the help of seomoz free api. But its taking too much time while extracting data and sometimes hangs in between.
The data extraction process needs to be fast as one sitemap.xml can have thousands of url and i have many such sitemap.xml.
Is there any api or other way (like making a crawler) for finding back-links?