I crawl my site using IIS Manager.There I found an error like “The page contains multiple canonical formats” means one page can be accessed by two urls.But the pages includes in the error message contains two different press releases of our site.How to avoid this pbm?
I’ve not used IIS Manager so I’m not 100% sure what you’re saying the error message is about, but…
If you’ve got multiple <link rel=“canonical”> tags on a page, that is a problem, and you need to remove some of them so you only have one.
If you’ve got a page that can be accessed via multiple different routes, you should put a <link rel=“canonical” href=“[preferred URL]”> tag in the <head> with the URL format that you want Google to use.