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Crawler
The data on this site is collected through a crawler named MetaGeneratorCrawler. It visits the entrypage of every linked domain or subdomain regardless, where the link points on the crawled site.
The goal of this site and crawler is, to collect some data, which generators are used through the web. The country level domains give an extra information, how the software is spread around the world.
If you do not whish, that the crawler visit your site again, feel free to add the following line to your robots.txt:
User-agent: MetaGeneratorCrawler
Disallow: /