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The search engine might make the copy accessible to users. Web crawlers that obey restrictions in robots.txt [2] or meta tags [3] by the site webmaster may not make a cached copy available to search engine users if instructed not to. Search engine cache can be used for crime investigation, [4] legal proceedings [5] and journalism. [6] [1 ...
As of February 2009, Wikipedia allows all search engines to cache its results. That is, if a search engine like Google happens to crawl a page, any inappropriate or bad content, including WP:BLP violations, may be propagated out onto the Internet for an indeterminate amount of time.
Demonoid is a BitTorrent tracker and website founded in 2003 to facilitate file-sharing–related discussion and provide a searchable index of torrent files.The site underwent intermittent periods of extended downtime in its history due to the occasional need to move the server, generally caused by cancellation of ISP service due to local political pressure.
BTDigg was founded by Nina Evseenko in January 2011. The site is also available via the I2P network and Tor.In March–April 2011, several new features were introduced, among them web plugin to search with one click, qBittorrent plugin, showing torrent info-hash as QR code picture, torrent fakes and duplicates detection, and charts of the popular torrents in soft real-time.
Varnish is a reverse caching proxy [2] used as HTTP accelerator for content-heavy dynamic web sites as well as APIs. In contrast to other web accelerators , such as Squid , which began life as a client-side cache, or Apache and nginx , which are primarily origin servers , Varnish was designed as an HTTP accelerator.
The piece size in regular torrents is a tradeoff between the size of the .torrent file itself and the piece size. Often, for files that are 4 GB, the piece size is 2 or 4 MB, just to avoid making the .torrent file too big. Merkle torrents solves these problems by removing the tradeoff between .torrent size and piece size.
A Snowflake proxy runs whenever the browser or program is connected to the internet. If the proxy host has a dynamic IP, the proxy will change its IP address over time. [10] [8] See also ad hoc network. Snowflake proxies are thus used as Tor entry nodes, not as exit nodes. Exit nodes are the other end of the chain.
Google and other search engines will often cache the pages they provide in their search result, to avoid having to look up these pages multiple times and thus slow down searches. For most websites, this doesn't cause any particular problem, as many websites will remain (mostly) unchanged between googlebot runs.