Ich habs gefunden. Es liegt an vBulletin.
Jemand greift permanent mit Fetch API darauf zu:
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:00 +0200] "GET /vb/postings.php?action=getip&postid=37202 HTTP/1.0" 200 10457 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:01 +0200] "GET /vb/editpost.php?action=editpost&postid=37203 HTTP/1.0" 200 10460 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:01 +0200] "GET /vb/newreply.php?action=newreply&postid=37203 HTTP/1.0" 200 10460 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:02 +0200] "GET /vb/report.php?postid=37203 HTTP/1.0" 200 10442 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:02 +0200] "GET /vb/postings.php?action=getip&postid=37203 HTTP/1.0" 200 10457 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:03 +0200] "GET /vb/editpost.php?action=editpost&postid=37204 HTTP/1.0" 200 10460 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:03 +0200] "GET /vb/newreply.php?action=newreply&postid=37204 HTTP/1.0" 200 10460 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:04 +0200] "GET /vb/report.php?postid=37204 HTTP/1.0" 200 10442 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:05 +0200] "GET /vb/postings.php?action=getip&postid=37204 HTTP/1.0" 200 10457 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:05 +0200] "GET /vb/editpost.php?action=editpost&postid=37205 HTTP/1.0" 200 10460 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:06 +0200] "GET /vb/newreply.php?action=newreply&postid=37205 HTTP/1.0" 200 10460 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:06 +0200] "GET /vb/report.php?postid=37205 HTTP/1.0" 200 10442 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:07 +0200] "GET /vb/postings.php?action=getip&postid=37205 HTTP/1.0" 200 10457 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:08 +0200] "GET /vb/editpost.php?action=editpost&postid=37206 HTTP/1.0" 200 10460 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:08 +0200] "GET /vb/newreply.php?action=newreply&postid=37206 HTTP/1.0" 200 10460 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:09 +0200] "GET /vb/report.php?postid=37206 HTTP/1.0" 200 10442 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:10 +0200] "GET /vb/postings.php?action=getip&postid=37206 HTTP/1.0" 200 10457 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
www.ntcompatible.com 24.234.53.117 - - [19/Jul/2001:04:42:10 +0200] "GET /vb/editpost.php?action=editpost&postid=37207 HTTP/1.0" 200 10460 "-" "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) Fetch API Request"
Wie kann ich ihn bannen?