I hope so. The trick would be, after there is a cache of the Internet on Mars, to only have to send the changes, not the whole Internet again.

Straight snapshots would probably be the only viable option though. And maybe make the policy, once a decade do a complete update. And every year, do "any webpage accessed by colonists in the past year will be updated. And the top 5-15% of webpages by popularity on Earth."

And during the year, the top 5% of webpages, and any webpage with specifically Mars relevant content would be updated "wirelessly."

The numbers would change constantly, depending on bandwidth and costs and whatnot. But the question "how to build the best asynchronous shadow Internet given such and such constraints" is fascinating.

Did you know -- there are more ports on the internet than just 53 and 80?

-- A message from your friendly local hacker wizard

The only thing your plan doesn't account for is how we get the updates from the web developers on Mars :-)

Perhaps, but I just got an idea for an interview question...