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Hi there. What we know for certain is that these kinds of signals show up in manual warnings delivered via Search Console, and are a signal that a human quality reviewer would pay attention to. Everything about exactly what Google is doing algorithmically has some element of guesswork to it, but this is a machine-detectable pattern that I would think would be very likely to be detected automatically and the links discounted. [Sidenote: it wouldn't be the crawler that did this - it would happen at some stage after that - just a semantic difference, but thought it was worth adding for clarity.]

Hi, I just got a client who has had the same problem as you do, different numbers - drop and goes back up again. I did some analysis as he also had taken some SEO services. Well, I wouldn't blame the backlinks that he had but yes, it was excessive backlinks produced during the Dec 2017 - Mar 2018. Which I believe wasn't required at all. Did some fixing with backlinks and now he is back up again. When it comes to your case, Do not rely 100% on third-party tools like SEMrush they can be right up to some extent but not 100%. Second, season or competition could be another thing that may have pushed you down during a certain period of time. Third, what does GSC says, High impression or Clicks? It's okay to have a higher impression but If clicks are somewhere around the same in comparison to organic traffic that it's okay as you do not get the 100% exactly the same data both in GSC and GA, numbers may differ up to 5%-10%.  Also focus more on High Impression VS. CTR. Do some comparsion what was working in Feb or June or anyother high months and what's not working this month. Which queries dropped in CTR or Impression etc. Do some analysis. Last, we all know there was an update in August that has impacted most of the websites and experienced the dropped in traffic and such small updates are still impacting the sites. My suggestion: Do an audit, go through the backlinks, check your keywords, see which pages were working good? What keywords went down? What could be the reason competition or do you need to change ON page.

Hello kekepeche, Citing your sources is good practice & you'll;l avoid aby potential penalisation. Google is clever enough to 'know' the original [older] content source Use regular links since you're citing the original authors If you can get your writer to rewrite some source content to make it 80%+original this would be better for your SEO campaigns as it's technically original content so will rank better - Though, take care as not to infringe copyright

You're doing things by the book. Add anchor text & use images & videos also, if you have these assets.

Hello.  My thoughts. Question 1.  I really don't think you're duplicating content by summarizing what someone else says.  I would make sure the article is primarily your content and not just rehashed content because as soon as you add links you're giving some of your Page Rank away.  It is not bad SEO practice to list sources and links at the bottom of the blog post, in this case I think it is a must.  You must give credit to the original writer and ensure that your content writer isn't plagiarizing anything.  Not preaching, just words of caution. Question 2.  Custom, relevant content is most beneficial for SEO.  Appropriate links to other credible sites is good for SEO.  Rehashing someone else's blog post probably isn't beneficial if that's the meat of the article. Question 3.  I try to not use nofollow links because there's someone on the other side of that link doing SEO.  When that someone sees I've given them a followed link, they come check me out and that creates an opportunity for a link in return.