Yes. That is considered duplicate content. You common URLs you should check for include:

• http://domain.com
• https://domain.com
• http://www.domain.com
• https://www.domain.com
• http://domain.com/index.(extension)
• https://domain.com/index.(extension)
• http://www.domain.com/index.(extension)
• https://www.domain.com/index.(extension)
• http://domain.com/default.(extension)
• https://domain.com/default.(extension)
• http://www.domain.com/default.(extension)
• https://www.domain.com/default.(extension)

I might have missed a few more, but those are the ones I usually look for.

You can review this Google Webmaster Tools article on how to fix duplicate content issues by using 301 redirects, selecting a preferred domain in GWT, using the canonical tag, and more.

Typically, not in all cases, you have an http and https issue because you have a secure page on your website that uses relative links instead of absolute. So when you go from http to signin on an https, from that page all links point to https page versions instead of the http which the visitor came in on.

Hope this helps.

Mike

Hi Margarita,

I have encountered similar issues when you need to enter a password or where the site might require cookies.

Here is what Screaming Frog has to say on the topic:

"13) Why Won’t The SEO Spider Start? Top ↑

This is nearly always due to an out of date version of Java. If you are running the PC version, please make sure you have the latest version of Java. If you are running the Mac version, please make sure you have the most up to date version of the OS which will update Java. Please uninstall, then reinstall the spider and try again.

14) Why Won’t The SEO Spider Crawl My Website? Top ↑

This could be for a number of reasons. Before contacting us, please check your robots.txt to see if the website is blocking the SEO spider. Please also ensure the website is html (the SEO spider does not crawl framesets), that it can be crawled without JavaScript or requiring cookies. Please also check for the ‘nofollow’ attribute if certain links are not being crawled. There is an option in the configuration to crawl ‘nofollow’ links."

Also, SEER has a great article about how you can use Screaming Frog 55 different ways - just some good info.

Hope this helps.

Mike