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Hi there, Sam from Moz's Help  Team  here! So, it’s important to note that the data you’re seeing in Link Explorer is based on when we last crawled a link. This means that if a link is removed or altered after the last time we crawled it, it will still be marked as active until we attempt to recrawl that link again. You can see the date we last crawled a link by exporting a CSV from the Inbound Links section. In the CSV there will be a column for when we first discovered the link and a column for when we last crawled that link. If you’re not finding a link we’re reporting as discovered on a particular page, I would recommend looking to see when we last crawled that link. Although new link data is added to our index everyday, we currently try to re-crawl all high-quality pages at least every 90 days. Most links in the index come from pages that were crawled less than 6 months ago. Once we attempt to recrawl those links, if we’re not able to find them or crawl them, they will then be marked as lost in your Link Explorer report. You can read more about Discovered and Lost links in our Help Hub!