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Well the answer could be if the link in the comment is about the same subject than the article, sometimes "spam" is kind of subjetive matter.

The are lots of factors, in google more than 200, and the ones we don´t know, Alvin give you the most important in an express audit, but as i said, there are more then 200, how is made your site, links, age of domain, name of domain, end of domain if is .com or country one. Get all the data that you find in your competitor and try to be better in all ways, like: -Amount of content -Quality of content -Better site on page -Links to your site ...

No idea about that, i hope so, somebody of the Moz staff should answer that.

Not silly, it can be good in a linkbuilding strategy te get links nofollow, the links nofollow are important to have 50% nofollow links and 50% follow links to looks a natural linkbuilding to the eyes of google. But the links you can get in the comments in the form to get the link in the username, no in the body of the comment.

You can pay yearly:  https://moz.com/products/pro/pricing see the year tab, you got discount

Fantastic, always when you need to solve this, usually look in the theme directory you are using, it is where it print the content, and like php developers, the folder "includes" is where the header.php, content.php sidebar.php or footer.php are (or similar), is the folder to put this files to not repeat this code again and again in all urls.

I can´t see what cms you are using (not wordpress, drupal or joomla), probably is in a theme template, in a folder call includes, the file the print the header, probably header.php or something, depends the cms or the structure.

You first fix that by hand, and after you have to wait Google Re-index your site

I still think you should fix de separation in the keywords content= " as Sean said first time

The indentation code looks strange

RcvWVNU

Hi Ronnel, in my case, the most important of my url (after the home) is missing in all google search, i tried to crawl in many ways but it´s like is not posible to recover, it´s strange becouse i did not heard this can of penalty, that happened the 12 of this month. (sorry for my english, i´m spanish).

UPDATE: i´ve just recover from my situatio prior 12, :), i don´t know how

Thanks very much for the answer, i know about the hreflanf, with sub-folder i think for the principal language you can omitted the sub-folder: example.com for spanish and example.com/en for english, but not so sure if that is good.

I can´t see what cms you are using (not wordpress, drupal or joomla), probably is in a theme template, in a folder call includes, the file the print the header, probably header.php or something, depends the cms or the structure.

The are lots of factors, in google more than 200, and the ones we don´t know, Alvin give you the most important in an express audit, but as i said, there are more then 200, how is made your site, links, age of domain, name of domain, end of domain if is .com or country one. Get all the data that you find in your competitor and try to be better in all ways, like: -Amount of content -Quality of content -Better site on page -Links to your site ...

Fantastic, always when you need to solve this, usually look in the theme directory you are using, it is where it print the content, and like php developers, the folder "includes" is where the header.php, content.php sidebar.php or footer.php are (or similar), is the folder to put this files to not repeat this code again and again in all urls.

I did have a similar issue in the past with a client and we used to have the same problem, with the solution Sean gives should it be resolved.