[General] Webboard: Antispam algorythm
Author: fasfuuiios Email: Message: I have forgotten to add that this black hat seo program is still under active development because after end of November spam activity grows. The say on black hat forums that this program currently can recognize up to 100.000 of text based capthcaz and it can collects these questions and send them to developers servers for analysis. One of the ways to stop them is using database from http://www.stopforumspam.com/ But this needs statistics and preparation. So it looks like simple solution as described is much better. It can save a lot of traffic and keep search results clean. But also harm normal sites. Reply: http://www.mnogosearch.org/board/message.php?id=21616 ___ General mailing list General@mnogosearch.org http://lists.mnogosearch.org/listinfo/general
Re: [General] Webboard: Antispam algorythm
On 11/12/2013 15:59, b...@mnogosearch.org wrote: Author: fasfuuiios Email: Message: Currently it looks like there is no way to stop indexing of spammed sites. Link spammers even spam this board automatically from time to time. That software is very pluggable and can be adapted for any type of cms and submit forms. One approach would be to build a table of problem/spam links. Then if a site has any of these toxic links, either drop the website or add the toxic link to a regexp. I thought about global dirty solution that could haunt spam during indexing process. Here is the idea. - Say we have new option for 3.4 + versions: ExternalLinkCount [maxlinks] [maxpages] [nofollow] maxlinks is the limit for external links on page. (Spammers are trying to add direct links for pagerank etc.) From work I do every month in TLD web usage surveys (measuring how websites are used in TLDs and the percentages of active/holding page/PPC/redirects), link spam is either comment form or cracked Joomla/Wordpress spam links. Comment spam can be be blocked with a regexp. The injection link spam may be invisible to ordinary browsers but visible to search engines due to CSS rules. These sites often use an old version of Joomla or Wordpress or a vulnerable plug-in. But they do not have many outbound toxic links. And these toxic links generally change each month. This will delete any page which has more than 20 external links. Most news sites will have more than this as they will have a network of their own sites, analytics, advertising, social media and other links. Web directories still exist and they typically have more than 20 outbound links per page. (Will post more later.) Regards...jmcc ___ General mailing list General@mnogosearch.org http://lists.mnogosearch.org/listinfo/general
[General] Webboard: Antispam algorythm
Author: fasfuuiios Email: Message: Currently it looks like there is no way to stop indexing of spammed sites. Link spammers even spam this board automatically from time to time. That software is very pluggable and can be adapted for any type of cms and submit forms. I thought about global dirty solution that could haunt spam during indexing process. Here is the idea. - Say we have new option for 3.4 + versions: ExternalLinkCount [maxlinks] [maxpages] [nofollow] maxlinks is the limit for external links on page. (Spammers are trying to add direct links for pagerank etc.) maxpages is the limit for probably spammed pages on same host. nofollow is true or false. Filter only spam pages with or without rel=nofollow --- Examples: ExternalLinkCount 20 This will delete any page which has more than 20 external links. ExternalLinkCount 20 20 This will automatically ban and remove site that has more than 20 pages where each page has more than 20 external links. ExternalLinkCount 20 20 true This will do previos thing with and without nofollow links. ExternalLinkCount 20 20 false Only for direct links that play with pagerank etc. --- This is not ideal. It can cut normal pages. But those webmasters who use nofollow as google recommended are rather safe. This can cut blog pages with tons of good comments. Big scientific pages, catalogs and wikis are not probably safe from such dirty filtering. Anyway this is probably the simplest way to catch those sites that have tons of spammed pages. With high limits it could probably help. Example of site that is currently under spam attack. It generates thousands of such spammed pages. That is why I thought about this problem in very basic but cruel way. http://www.gksbeton.ru/index.php/peremychki-pb/item/35-novost-1/35- novost-1?start=400 Reply: http://www.mnogosearch.org/board/message.php?id=21609 ___ General mailing list General@mnogosearch.org http://lists.mnogosearch.org/listinfo/general
[General] Webboard: Antispam algorythm
Author: fasfuuiios Email: Message: I'm not completely sure that it's good idea but probably it is better than nothing at all to stop this. Of course, it needs tests and analysis. I believe that normal html page has no more than 5 external links. Currently even paid links are usually limited to 3, and they are located inside of article to avoid google filter penalties etc. Reply: http://www.mnogosearch.org/board/message.php?id=21610 ___ General mailing list General@mnogosearch.org http://lists.mnogosearch.org/listinfo/general
