Various HTMLy websites (apart from official or sponsored ones) findable on the net:

• https://stuff.octt.eu.org/

• https://kanti.de/

• https://andyrew.info/blog/

• https://makapps.free.nf/htmly/

• https://webdrift.org.ntnu.no/htmly/

• https://bryanmiller.us/

• https://haminepali.com/

• https://www.blog.aramtrades.com/

• https://www.kalpavrukshaschool.org/blog/

• https://knaz.nu/

• https://danode.com/

• https://consolemission.org/Q1news/

• https://chess.dodaily.co.za/blog/

• https://dea-akkuservice.de/qualitylife-nrw/

• https://rolandixor.pro/blog/

• https://shellhound.com/

Empty (?):

• https://speakingfax.com/

• https://www.donateagiftcard.com/

• https://explodingaardvark.com/

• https://yesigetenoughprotein.co.za/

• https://mczsandringham.ac.zw/htmly/

• https://www.c3951466.myzen.co.uk/htmly/

Almost empty (abandoned early):

• https://papajoespcs.com/

• https://food.oo.gd/

• https://htmly.twisty.org/

• https://pageinnovators.com/

Clearly for testing:

• http://dart.rissresearch.com/cms/htmly/