Blazing SEO

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Blazing SEO is a company which supposedly specializes in "SEO services". They have a very big IP range with many subnets. A large amount of http POST requests trying to add link-spam originates in their IP ranges. Blocking them is a good idea.

Trash requests form Blazing SEO use a variety of user-agents such as Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36. It is hard to identify these requests by user-agent. It is not that hard to identify them by the fact that they will requests a page followed by a http POST request to that page. No images or CSS or other elements are requested by the spam-bots operating in their ranges.

Outright blocking everything from Blazing SEO is a good idea.

BLACKLISTIF="enp2s0"
BLACKLIST6IF="ipv6-tunnel"
IPTABLES="/usr/sbin/iptables"
IP6TABLES="/usr/sbin/ip6tables"

$IPTABLES -I INPUT -i $BLACKLISTIF -s 192.171.80.0/24  -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 138.229.102.0/24 -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 152.44.99.0/24   -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 152.44.100.0/24  -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 152.44.101.0/24  -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 152.44.102.0/24  -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 152.44.103.0/24  -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 152.44.104.0/24  -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 152.44.105.0/24  -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 152.44.106.0/24  -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 152.44.107.0/24  -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 152.44.108.0/24  -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 152.44.109.0/24  -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 152.44.110.0/24  -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 162.244.148.0/24 -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 172.96.84.0/24   -j DROP
$IPTABLES -I INPUT -i $BLACKLISTIF -s 216.180.109.0/24 -j DROP

See Web crawlers for information about other good and bad actors crawling the Internet.