DNS caching problems

How do I increase Time To Live

[twist]

A large portion of people from my area use cable for internet. The cable company must have a very small amount of room for caching because everytime I request my website it takes 2-5 seconds initially for it to resolve. I wouldn't care, but my website is regional. The local DSL doesn't have this problem.

I can't very well ask people using cable to change their DNS settings.

Is there a meta tag or some other way to increase my TTL on the cable companies servers cache?

Is there a program I could run in the background on my computer that pings my website every 10 minutes or so to keep it resolving quickly? If such a program was used, would it be wrong to use it (illegal)?

Has anyone ever contacted a cable company and asked them if they have the ability to permently add your domain/ip to their tables?

[physics]

I'm not sure how to solve your problem, but I can't see how it could be construed as illegal to ping your web site every 10 minutes...
Some browsers (I think Opera does) let you set a page to reload every N minutes...

[twist]

Yeah, it is an annoying problem. I could set up a dos window and just let it run in the background. I was just wondering if there was a program that I could stick in the system tray.