Glass door salaries, salary ranges posted on stack overflow jobs (and other job sites), the salary ranges in the job descriptions recruiters send my way. I guess it's not too uncommon to see 110k or sometimes 120k as the max for posted salary ranges, but it's rare to see anything more than that. And the averages that I see is usually 90-100k. It feels to me like compensation should be much higher than that though, especially compared to other major cities (even considering the cost of living adjustment for SF).

I mostly look at .NET or iOS job postings, sometimes Python. iOS used to be higher, it seems to be going down lately. Pretty common I see ~90k for a senior dev posting for that.

Also, some of the jobs I get contacted about are video game industry (used to be in that industry), which are like 20% lower than other jobs on average anyway, especially around here.