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Hello Olga! Open Site Explorer pulls from our Mozscape index, which updates about once a month. You can always check our update schedule whenever you like! Most new sites and links will be indexed by our spiders and available in Mozscape and Open Site Explorer within 60 days, but some take even longer for a variety of reasons, including the crawl-ability of sites, the amount of inbound links to them, and the depth of pages in subdirectories. Just so you know, here's how we compile our index: We grab the most recent index We take the top 10 billion URLs with the highest MozRank (with a fixed limit on some of the larger domains) We start crawling from the top down until we've crawled 180,000,000,000 pages (which is about 35% the amount in Google's index) Therefore, if the site is not linked to by one of these seed URLs (or one of the URLs linked to by them in the next update), then it won't show up in our index. We update our Mozscape Index every 4 weeks. Crawling the entire Internet to look for links takes 2-3 weeks, but our crawlers are always collecting data. When we need to put the index together, we grab all the data they have collected and start processing, which can take up to 3 weeks to determine which of those links are the most important. Mozscape focuses on a breadth-first approach. This means that we almost always have content from the homepage of websites, externally linked-to pages, and pages higher up in a site's information hierarchy. But deep pages that are buried beneath many layers of navigation are sometimes missed and it may be several index updates until we catch all of these. If our crawlers or data sources are blocked from reaching those URLs, they may not be included in our index (though links that point to those pages will still be available). Finally, the URLs seen by Mozscape must be linked to by other documents on the web, or our index will not include them. I hope this information helps! While the site and links may not be indexed yet, give it some time Thanks! Kevin Help Team

Hello, Olga. If you want to simply remove it (or at least tell Google bots that it's removed), use "410 Gone" status, not 404. For user experience, I'd redirected those subdomains to index page of domain, or, if you have time and resources, create a landing page, saying something like "Sorry for inconvenience, the content is not there anymore, use search to find whatever you need ", add a search bar of main domain content, viola! Hope this helps.