Hi @rpbhatt
Thanks for response!
Which is available on WP Dashboard -> Settings -> Link Checker -> Advanced tab
So that means that you are not using current plugin but some pre-2.0 version then – which doesn’t even have the “Cloud” and “Local” options. That’s important information for us so thanks for making it clear.
So I will refer to that older version in my responses below. Those response do NOT apply to the current version’s “cloud” engine.
If the scan and recheck (Which is available on WP Dashboard -> Settings -> Link Checker -> Advanced tab) does by crawling each page or database search?
It doesn’t “crawl” the site and its pages but works based on the DB. Specifically, it simply generates the list of posts (of any type that’s enabled in “Look for links in” settings) and then reads their content from the DB where extracts links from.
It then saves all the found links in the DB in its own custom tables.
Those links are then checked in separate process.
please tell me the whole process how the scan and recheck process is working and please provide me the files name where the scanning and rechecking is happening.
As explained above:
– plugin goes through the post in DB
– read posts content and parses it in order to extract links from it
– then saves link and information about link in its own DB tables
– then it makes cURL requests to those URLs and checks HTTP response
– based on that response it markes the link as broken or not.
There’s no “single file” that does that. It’s quite a lot of code across multiple files in the plugin.
If the recheck can be done automatically schedule means can get updated broken/unbroken links? if so then from where i can set the time?
You can’t schedule that because this button – which is actually not “Rescan” but “Re-check all pages” – is not for “checking links” specifically but rather to force plugin to “rediscover” links.
Normally, links that are already discovered are already being automatically re-checked on schedule. In “General” tab of settings you have “Check each link every X hours” option. By default it’s 72 hours and it means that each link on the “All” links list will be re-checked about every 72 hours and its status will be updated if it changes (e.g. if it’s no longer broken, it will be marked as valid; if it was fine but broke – it will be now marked as broken, and so on).
There’s no need to use that button for it, it happens automatically anyway.
Additionally, in “Advanced” settings you also have “Link monitor” option which you use to decide when DB needs to be checked to possibly discover new links. It can be done continuously when dashboard is open and/or it can independently be run hourly in background. Still no need to use “Re-check all pages” button for that.
Also if it picks broken/unbroken links from trashed item post/pages/custom post type too?
It shouldn’t check trashed posts/pages. In “Look for links in” tab at the bottom you’ll find the “Post statuses” setting where you can decide which posts (post can be post, page, product or any other post type; see settings in “Look for links in” option above it) should be checked. It can check published posts, scheduled posts, pending, private and draft – but doesn’t check trashed posts.
Kind regards,
Adam
