OffByOne is a bot, but at the moment it is not known who develops it.

Latest OffByOne versions:

• OffByOne 3.0

Latest user agents:

• Mozilla/4.7 (compatible; OffByOne; Windows 98) Webster Pro V3.2
• Mozilla/4.7 (compatible; OffByOne; Windows 2000)
• Mozilla/4.7 (compatible; OffByOne; Windows 2000) Webster Pro V3.4