The record route option is an option!
Brian J Goodchild, Yi-Ching Chiu, Rob Hansen, Haonan Lua, Matt Calder, Matthew J. Luckie, Wyatt Lloyd, David Choffnes, Ethan Katz-Bassett · 2017
The IPv4 Record Route (RR) Option instructs routers to record their IP addresses in a packet. RR is subject to a nine hop limit and, traditionally, inconsistent support from routers. Recent changes in interdomain connectivity---the so-called "flattening Internet"---and new best practices for how routers should handle RR packets suggest that now is a good time to reassess the potential of the RR Option.