WordPress Version: 3.5
Yoast SEO Version; Latest version
I have both Yoast SEO XML Sitemap and Google XML Sitemap both installed in my wordpress website.
I would like to know if having both different types of XML Sitemaps generators in my website will be "harmful" ?
Today is 15 Jan, I realized that my website Cached data is still at 2 Jan 2013, could this due to the reason of the 2 different sitemap generators installed? Is the norm for Google to crawl your site approximately once per week?
Would like to seek your humble advices!