Since screen shotting the stats above, my new Pi-Hole has about 150k more domains.

Increasing blocked sited by adding blocklists to Pi-Hole

You can add additional blocklist from multiple sources to block even more sites with Pi-Hole as shown below.

Additional Pi-Hole Blocklists hosts files from several well-curated sources like adaway.org, mvps.org, malwaredomainlist.com, someonewhocares.org, and potentially others.

Suspicious Lists

https://reddestdream.github.io/Projects/MinimalHosts/etc/MinimalHostsBlocker/minimalhosts

https://raw.githubusercontent.com/StevenBlack/hosts/master/data/KADhosts/hosts

https://raw.githubusercontent.com/StevenBlack/hosts/master/data/add.Spam/hosts

https://v.firebog.net/hosts/static/w3kbl.txt

Block advertisement sites and content

https://v.firebog.net/hosts/AdguardDNS.txt

https://s3.amazonaws.com/lists.disconnect.me/simple_ad.txt

https://hosts-file.net/ad_servers.txt

https://v.firebog.net/hosts/Easylist.txt

https://raw.githubusercontent.com/StevenBlack/hosts/master/data/SpotifyAds/hosts

https://raw.githubusercontent.com/StevenBlack/hosts/master/data/UncheckyAds/hosts

Block tracking sites and protect your privacy

https://v.firebog.net/hosts/Easyprivacy.txt

https://v.firebog.net/hosts/Prigent-Ads.txt

https://raw.githubusercontent.com/quidsup/notrack/master/trackers.txt

https://raw.githubusercontent.com/StevenBlack/hosts/master/data/add.2o7Net/hosts

https://raw.githubusercontent.com/StevenBlack/hosts/master/data/tyzbit/hosts

Blocked malicious sites and make your network safer

https://s3.amazonaws.com/lists.disconnect.me/simple_malvertising.txt

https://mirror1.malwaredomains.com/files/justdomains

https://hosts-file.net/exp.txt

https://hosts-file.net/emd.txt

https://hosts-file.net/psh.txt

https://mirror.cedia.org.ec/malwaredomains/immortal_domains.txt

https://www.malwaredomainlist.com/hostslist/hosts.txt

https://bitbucket.org/ethanr/dns-blacklists/raw/8575c9f96e5b4a1308f2f12394abd86d0927a4a0/bad_lists/Mandiant_APT1_Report_Appendix_D.txt

https://v.firebog.net/hosts/Prigent-Malware.txt

https://v.firebog.net/hosts/Prigent-Phishing.txt

https://raw.githubusercontent.com/quidsup/notrack/master/malicious-sites.txt

https://ransomwaretracker.abuse.ch/downloads/RW_DOMBL.txt

https://v.firebog.net/hosts/Shalla-mal.txt

https://raw.githubusercontent.com/StevenBlack/hosts/master/data/add.Risk/hosts

https://zeustracker.abuse.ch/blocklist.php?download=domainblocklist

Block pornography sites in your network

https://raw.githubusercontent.com/chadmayfield/pihole-blocklists/master/lists/pi_blocklist_porn_top1m.list

Simple lists that can help prevent crypto-mining in the browser or other applications.

** I have removed two of them as they are listed above. **

https://mirror1.malwaredomains.com/files/justdomains

http://sysctl.org/cameleon/hosts

https://zeustracker.abuse.ch/blocklist.php?download=domainblocklist

---

(Added 26 July, 2019) Some big names used for internet facing bug-splatting:

Bambenek: http://iplists.firehol.org/?ipset=bambenek_c2

Alienvault: http://iplists.firehol.org/?ipset=alienvault_reputation

Binary defense: http://iplists.firehol.org/?ipset=bds_atif

Blocklist.de: http://iplists.firehol.org/?ipset=blocklist_de

http://iplists.firehol.org