First of all, you need to check the friend links for search engine optimization. Delete those websites that have been penalized or are not up to standard. Of course, delete them separately and don't delete too many at once. Add connections from websites with high weight and fast updates. These can be friend links, one-way links, or backlinks.
Secondly, look at the website content. Arrange to update content regularly and quantitatively every day. If you add 5 articles at 9 o'clock every day, then continue to do so. Don't add irregularly like adding 1 article today and 10 articles a few days later. At the same time, try to update original content as much as possible. If there is really no original content, then copy others' articles and modify them, which is called pseudo-original. Or keep an eye on some websites that often publish original articles. Once you find updates, copy and publish them in the first time. If you can publish before they are indexed, it may become the origin of the original content.
High-quality content should maintain three aspects: (1) unique titles (2) specially made content (3) reasonable layout of keywords related to nature-related content and proper allocation of word segmentation.
Thirdly, wait for Baidu's update. Sometimes Baidu's update does not necessarily release snapshots, so don't rush. Wait a bit longer. At the same time, it's best to use techniques to attract spiders to visit your website. Check the logs frequently to see if the spider comes but doesn't collect, or just doesn't come at all, so you can make corresponding strategies.
Finally, when the snapshot is updated, the so-called weight will gradually return and increase under your regular original updates. Therefore, inclusion and ranking are also expected soon.
Reference link: http://www.seofuwuwang.cn/News/zuixinzixun003.html