Here’s, hopefully, a resonably up to date list of URLs to use for WordPress Update Services in 2021, with duplicates removed 🙂
I don’t think there’s a “best practice” for these, and everyone’s opinion seem to differ on the subject. So I am by no means claiming that this is a complete or good list for WordPress Update Services, but it’s possibly a start.
These go into Settings > Writing > Update Services
http://api.feedster.com/ping http://api.moreover.com/ping http://api.my.yahoo.com/RPC2 http://api.my.yahoo.com/rss/ping http://bing.com/webmaster/ping.aspx http://blogdb.jp/xmlrpc http://blog.goo.ne.jp/XMLRPC http://blogmatcher.com/u.php http://blogping.unidatum.com/RPC2 http://blogsearch.google.ae/ping/RPC2 http://blogsearch.google.at/ping/RPC2 http://blogsearch.google.be/ping/RPC2 http://blogsearch.google.bg/ping/RPC2 http://blogsearch.google.ca/ping/RPC2 http://blogsearch.google.ch/ping/RPC2 http://blogsearch.google.cl/ping/RPC2 http://blogsearch.google.co.cr/ping/RPC2 http://blogsearch.google.co.cr/ping/RPC2 http://blogsearch.google.co.hu/ping/RPC2 http://blogsearch.google.co.hu/ping/RPC2 http://blogsearch.google.co.id/ping/RPC2 http://blogsearch.google.co.id/ping/RPC2 http://blogsearch.google.co.il/ping/RPC2 http://blogsearch.google.co.in/ping/RPC2 http://blogsearch.google.co.it/ping/RPC2 http://blogsearch.google.co.jp/ping/RPC2 http://blogsearch.google.co.ma/ping/RPC2 http://blogsearch.google.com.ar/ping/RPC2 http://blogsearch.google.com.au/ping/RPC2 http://blogsearch.google.com.br/ping/RPC2 http://blogsearch.google.com.co/ping/RPC2 http://blogsearch.google.com.do/ping/RPC2 http://blogsearch.google.com.mx/ping/RPC2 http://blogsearch.google.com.my/ping/RPC2 http://blogsearch.google.com.pe/ping/RPC2 http://blogsearch.google.com/ping/RPC2 http://blogsearch.google.com/ping/RPC2 http://blogsearch.google.com.sa/ping/RPC2 http://blogsearch.google.com.sg/ping/RPC2 http://blogsearch.google.com.tr/ping/RPC2 http://blogsearch.google.com.tw/ping/RPC2 http://blogsearch.google.com.ua/ping/RPC2 http://blogsearch.google.com.uy/ping/RPC2 http://blogsearch.google.com.vn/ping/RPC2 http://blogsearch.google.co.nz/ping/RPC2 http://blogsearch.google.co.th/ping/RPC2 http://blogsearch.google.co.uk/ping/RPC2 http://blogsearch.google.co.ve/ping/RPC2 http://blogsearch.google.co.za/ping/RPC2 http://blogsearch.google.de/ping/RPC2 http://blogsearch.google.es/ping/RPC2 http://blogsearch.google.fi/ping/RPC2 http://blogsearch.google.fr/ping/RPC2 http://blogsearch.google.gr/ping/RPC2 http://blogsearch.google.hr/ping/RPC2 http://blogsearch.google.ie/ping/RPC2 http://blogsearch.google.it/ping/RPC2 http://blogsearch.google.jp/ping/RPC2 http://blogsearch.google.ki/ping/RPC2 http://blogsearch.google.kz/ping/RPC2 http://blogsearch.google.la/ping/RPC2 http://blogsearch.google.li/ping/RPC2 http://blogsearch.google.lk/ping/RPC2 http://blogsearch.google.lt/ping/RPC2 http://blogsearch.google.lu/ping/RPC2 http://blogsearch.google.md/ping/RPC2 http://blogsearch.google.mn/ping/RPC2 http://blogsearch.google.ms/ping/RPC2 http://blogsearch.google.mu/ping/RPC2 http://blogsearch.google.mv/ping/RPC2 http://blogsearch.google.mw/ping/RPC2 http://blogsearch.google.nl/ping/RPC2 http://blogsearch.google.no/ping/RPC2 http://blogsearch.google.nr/ping/RPC2 http://blogsearch.google.nu/ping/RPC2 http://blogsearch.google.pl/ping/RPC2 http://blogsearch.google.pn/ping/RPC2 http://blogsearch.google.pt/ping/RPC2 http://blogsearch.google.ro/ping/RPC2 http://blogsearch.google.ru/ping/RPC2 http://blogsearch.google.rw/ping/RPC2 http://blogsearch.google.sc/ping/RPC2 http://blogsearch.google.se/ping/RPC2 http://blogsearch.google.sh/ping/RPC2 http://blogsearch.google.si/ping/RPC2 http://blogsearch.google.sk/ping/RPC2 http://blogsearch.google.sm/ping/RPC2 http://blogsearch.google.sn/ping/RPC2 http://blogsearch.google.st/ping/RPC2 http://blogsearch.google.tk/ping/RPC2 http://blogsearch.google.tl/ping/RPC2 http://blogsearch.google.tm/ping/RPC2 http://blogsearch.google.to/ping/RPC2 http://blogsearch.google.tp/ping/RPC2 http://blogsearch.google.tt/ping/RPC2 http://blogsearch.google.us/ping/RPC2 http://blogsearch.google.vg/ping/RPC2 http://blogsearch.google.vu/ping/RPC2 http://blogsearch.google.ws/ping/RPC2 http://blo.gs/ping.php http://blogs.yandex.ru/ http://blog.with2.net/ping.php http://bulkfeeds.net/rpc http://coreblog.org/ping/ http://geourl.org/ping http://ipings.com http://mod-pubsub.org/kn_apps/blogchatt http://news2paper.com/ping http://ping.bitacoras.com http://ping.bloggers.jp/rpc http://ping.blo.gs/ http://ping.blogs.yandex.ru/RPC2 http://ping.exblog.jp/xmlrpc http://ping.fc2.com http://ping.feedburner.com http://ping.myblog.jp http://pingoat.com/goat/RPC2 http://ping.rootblog.com/rpc.php http://ping.rss.drecom.jp http://ping.syndic8.com/xmlrpc.php http://ping.weblogs.se/ http://rcs.datashed.net/RPC2/ http://rpc.blogbuzzmachine.com/RPC2 http://rpc.bloggerei.de/ http://rpc.bloggerei.de/ping/ http://rpc.blogrolling.com/pinger/ http://rpc.icerocket.com:10080 http://rpc.newsgator.com/ http://rpc.pingomatic.com http://rpc.technorati.com/rpc/ping http://rpc.twingly.com http://rpc.urlfan.com/ping http://rpc.weblogs.com/RPC2 http://services.newsgator.com/ngws/xmlrpcping.aspx https://ping.blogs.yandex.ru/RPC2 http://topicexchange.com/RPC2 http://trackback.bakeinu.jp/bakeping.php http://www.a2b.cc/setloc/bp.a2b http://www.bitacoles.net/ping.php http://www.blogdigger.com/RPC2 http://www.blogoole.com/ping/ http://www.blogpeople.net/servlet/weblogUpdates http://www.blogroots.com/tb_populi.blog?id=1 http://www.blogshares.com/rpc.php http://www.blogsnow.com/ping http://www.blogstreet.com/xrbin/xmlrpc.cgi http://www.lasermemory.com/lsrpc/ http://www.mod-pubsub.org/kn_apps/blogchatter/ping.php http://www.pingerati.net http://www.pingmyblog.com