External links are an important part of SEO，Which websites gave you external links?，Which websites are pointed to?，What should you do if there are many spam websites that give you invalid external links? How to screen、Block these external links?
1.Find external links through webmaster tools
After entering the webmaster tools，Click the number of links on the left，We can then see the most frequently linked web pages and the most common referring websites (websites that give you external links)
Filter by referring site
This method is relatively faster，Click on the most common referring sites，details，You can see it after entering，Can be exported，Just check one by one。
Filter by linked pages
If you want to make the filtering more detailed，You can use this method。View the most frequently linked pages - click for details。
Click on specific link，You can see which websites are linking to us。Click on the website again，You can see their specific URL，Click to enter their website，Then judge whether this is a spam external link based on the content.。
If this website has many external links to our URL,，It’s troublesome to open them one by one.，You can click Export in the upper right corner，Excel files can be exported，Then check locally one by one。
2.Eliminate unnecessary external links
We have just collected various external links through the above two methods.，Now we are going to create a list of links to disavow。
Link file format：
On each line you can only specify 1 URLs or domains to be denied。Do not reject entire subpaths，For example example.com/en/
To deny a domain (or subdomain)，Please add "domain:" prefix，For example：domain:example.com
File must be in UTF-8 or 7 ASCII-encoded text file
File name must end with .txt
The maximum URL length is 2048 characters
The file can contain at most 10 Thousands of lines of content (including blank lines and comment lines)，Size must not exceed 2MB。
Example：
# to refuse 2 URLs
http://spam.example.com/stuff/comments.html
http://spam.example.com/stuff/paid-links.html
# to refuse 1 domains
domain:shadyseo.com
The organized files are as shown below
Then enter this URLhttps://search.google.com/search-console/disavow-links，Choose which website needs to exclude external links，Then upload the list file。
After successful submission，Google will give you a reminder。
Official tips：Google will incorporate the list into the index as it recrawls the page and reprocesses the pages it discovers，This may take several weeks。
