首次备案:https://help.aliyun.com/knowledge_detail/36922.html
接入备案:https://help.aliyun.com/knowledge_detail/36926.html
变更备案:https://help.aliyun.com/knowledge_detail/36928.html

注销备案:https://help.aliyun.com/knowledge_detail/36936.html
注销其他单位或空壳主体备案:https://help.aliyun.com/document_detail/87892.html

认领原万网备案:https://help.aliyun.com/knowledge_detail/36931.html

如果单位名称、经营范围、网站名称、网站备注等含有经营性字样,但网站内容不涉及经营性业务,也必须办理经营性ICP许可证。
什么是互联网信息经营许可证(ICP)?https://help.aliyun.com/knowledge_detail/146657.html
经营性说明书:https://help.aliyun.com/document_detail/145196.html