Google Panda issues can be triggered by duplicate content, thin content, plagiarism, a poor user experience, keyword stuffing and other similar problems. Not only that, but it can also cause you to drop in search results or even getting removed from them. What you need to do here is to:
• Check your site for duplicate content and replace the duplicate with original content
• Check for plagiarism and, again, replace that with your own content
• See if there’s thin content on your site
• Start creating an audit for keyword stuffing
• Fix all the issues you find as the penalty can go away since your site will get revisited
Penguin is usually focused on removing or downranking the sites that have an unnatural link profile. If you have paid links, links that are coming from sites that are created only for SEO, from poor quality sites, overly optimized anchor text and so on, then you might be in danger of getting downranked by Penguin.
You can do the following to see if you were hit:
• See if there are any penalty risks, tools like SEO SpyGlass are a great choice here
• Try to remove all the harmful links
Hummingbird is an algorithm focused on content quality, and that’s why you need to avoid a poor user experience, keyword stuffing and exact match keyword targetings.
How to adapt to Hummingbird:
• Make your keyword research better by expanding it, try to find new keywords
• Understand and discover the audience language and focus on addressing it
• Focus on concepts rather than exact matching.
It’s an older algorithm that focuses on local search and it’s triggered by pages that are poorly optimized, which don’t have good backlinks, NAP inconsistency or which don’t have a citation for the local directories.
What you should do?
• Perform proper local optimization
• Create a Google My Business Page
• Check and ensure that the NAP consistency is there on your content
• Try to get featured in local directories
Mobile friendly update
Your site needs to have a viewport configuration, a great mobile friendliness and even support plugins. You need to focus on:
• Making your sites mobile friendly and responsive
• Take a test to see if your site is mobile friendly and adapt it properly
RankBrain is a system that was created to rank algorithm changes and it helps offer higher quality results based on stuff like machine learning and relevance. Issues can be caused by a low quality user experience and the lack of relevance features that are query-specific.
How to deal with RankBrain changes:
• Try to create a better user experience
• Understand your competition by researching them
As you can see, each Google Algorithm focuses on specific things so it all comes down to you to address the issues and either repair or prepare yourself properly. Try to focus on following our ideas and instructions, then the results will definitely pay off.