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For SEO work, there are many common problems or the problem will affect the site in the search results rankings.
In common SEO errors, if a page has only a few problems, then the relationship is small, and if there are more problems, then there will be quantitative changes to the situation.
Here are some of the most common SEO errors.
1) file name
This is not just a question of whether the filename is properly taken, but sometimes the URL has a whole problem.
2 repetitive content or bad content
The uniqueness of content is important, and the unique content is favored by search engines.
3) Link
Missing valid external link
4 Website Internal links
An invalid link can cause serious consequences.
5 keyword Piling
In doing based on the optimization of the page, some of the optimization means if not contradictory, can also be said to be mutually affected, then if a part of the neglect of a part, is better than everything?