I believe that most webmasters are familiar with the "sandbox". I will briefly introduce it here. In a simple word, the Google Sandbox means that your website has not participated in the official ranking during Google's testing period.
"Sandbox" is an important measure of Google's anti-spam website. It appeared in March 2004. At that time, it was the first time that Google took serious measures to clean up spam websites. Although there is a Google sandbox, Google still includes websites as quickly as in the past, absorbs fresh blood in the vast sea of the Internet, and includes the best websites. However, it no longer includes sites arbitrarily as before. All webmasters are new Although submitted websites are also included by Google, these websites generally need to go through a test period. After passing the test, your website can be put back into the Google ranking directory by Google. Generally, new websites submitted by webmasters will be included in Google. When taking a test, it meets the conditions for inclusion by Google. If it does not meet the conditions, Google will definitely not include it. Unless the webmaster re-optimizes the website according to Google's standards, otherwise if you submit it to Google again, Google will not include it even if you submit it 100 times. !
Google's Sandbox-sandbox effect generally lasts for 6 months. During these 6 months, the new website should continue to improve all aspects of SEO. After the sandbox effect, it will generally have a good ranking.
Now Baidu has also opened a sandbox, but this system is indeed different from Google. Most webmasters will often use the site command to check the inclusion status of their own websites. After the revision, Baidu has indeed made adjustments. Site is not your website. All the information included is not the information of the pages that can participate in the ranking. Just an estimate. As shown in the picture
For reference only
Take the domain name and website (www.tfseo.com) I registered on April 25 as an example. It has basically entered the Baidu "sandbox". The site does not show any information, but it does have keyword rankings as shown in the figure:
Baidu's adjustment means that Baidu's new "sandbox system" has begun to be applied, but there are still certain flaws. It should be that Baidu is currently modifying the ranking algorithm, or the new version of Baidu has not yet been completely updated.
Let me share it with you and criticize if I make any mistakes!