A quick note – I have made all of my sites secure (https://) and so the original OTA site for my ESP8266 ROMS is no longer appropriate. roms.webutu.com is now the place to go – sorry for any inconvenience. The files are not seen if you visit the site, just a home page - you simply enter the name of the site followed by slash and the rom name - for example... roms.webutu.com/rom.bin
Files available are:
blank.bin and esp_init_data_default.bin are needed for utterly blank ESP12 units.
rboot.bin and rom.bin are for my new ESP8266 code (which no longer supports ESP-01)