I have sitemap.xml but many SEO audit websites say I don't have...what is the fix?
<p>I have geenrated sitemap.xml and I have installed it on my website public-folders so my website www.example.com/sitemap.xml is working. However I have used several SEO audit tools like Woorank and SEO power suite, they all say sitemap.xml is not found, even I have included it in the robots.txt file </p>

<pre><code>Sitemap: http://www.example.com/sitemap.xml
User-agent: *
Disallow: /directory-x
Disallow: /directory-y
</code></pre>

<p>and still the same issue. Did I miss anything in placing my sitemap.xml?</p>