Hi SEO 4 Attorneys, it could be any thing is this for your site for a clients site.It could be an attempt at negative SEO from a competitor? The thing is people may try to push 100's of spammy links to a site in hopes to knock it down. In the end of the day my best advice is to monitor your link profile on a weekly basis. Try to remove negative links where possible if you cant remove them then opt for the disavow tool as a last resort.
Note: Google made a change a few years ago to how they track keywords and it has had a big impact on the discovery process. Before the change, Google would show which keywords consumers were using to find your website, making it easy to understand where and how your website was ranking. Google changed their tracking system so that any users who are logged into a Google account while searching will no longer have their keywords tracked as their Google activity remains encrypted. Due to this, when looking at Organic Traffic reports you will see (not provided) as a keyword throughout the reports – this often makes up over 90% of organic traffic and requires us to dig a bit more creatively to find what we need.
If your company is like my client’s, there’s a good chance you’re taking advantage of the maximum 20 goal completions that can be simultaneously tracked in Analytics. However, to make things easier and more consistent (since goal completions can change), I looked at only buyer intent conversions. In this case it was Enterprise, Business, and Personal edition form fills, as well as Contact Us form fills.
Organic Search is visitors who reach you by Googling or using another search engine which Google recognizes as a real search engine — mostly Bing and its second string, Yahoo. People using other search engines like DuckDuckGo or sites which are now commonly used as search engines but which have other purposes, like Pinterest, will show up in Referral traffic and in the case of Pinterest, in Social. If you have a good, well-optimized website, Organic Search will usually be your most frequent source. At our lab site, we do nothing to encourage other sources, so Organic Search is absolutely the top.
It might happen to have some lost links from now and then or a broken page due to some crawling issue or something similar. Yet, when your broken pages and links form up a figure just as big as your phone number, then you might be facing a problem; in terms of site user experience and organic traffic as well. Your bounce rate will increase, your overall usability, you will be loosing links and therefore you will start asking yourself “why did my organic traffic drop”?