Hybrid Site? Don’t want to do an i-frame, any ideas on what to do..

So our current company hosts the website and inventory software, pages, etc all together. I want to host the website ourselves then do an i-frame for the inventory pages and have them host it.. But I don’t want to use an i-frame as it will kill my SEO, how can I do that if the sites on another host?

Can I do mainsite.com namesever 1, 2
inventoy.mainsite.com nameserver 3, 4

? Is that even possible, not sure what to do.. I just want the inventory pages to read ourdomain.com/inventory but not be hosted on our server. Yet also run the main pages at ourdomain.com..

Any more info, looked at Google only links to downloads and a chart with four computers hooked up to one? No idea what that even is, thanks though.

Mod proxy lets you reverse proxy requests to another server. You could configure this so that /inventory on your main server connects to a completely different server, with Apache proxying the requests through.

Look at the reverse proxy example here

This is assuming you’re running Apache on the main site.

If not, you’ll have to put something in front of the two different servers like HAproxy or Nginx which can do the reverse proxying instead.

Mod proxy lets you reverse proxy requests to another server. You could configure this so that /inventory on your main server connects to a completely different server, with Apache proxying the requests through.

Look at the reverse proxy example here

This is assuming you’re running Apache on the main site.

If not, you’ll have to put something in front of the two different servers like HAproxy or Nginx which can do the reverse proxying instead.

, Sounds complicated but we have cash to throw around. Also here’s the problem I see so far..

Server A = Ours (Main Site)
Server B = Theirs (Inventory)

I don’t think they will let me install anything on their server.. They just host the software on their site. Trying to get them to just install the software on my sever and let it be simple, but I don’t think they want to give me their code.. The main site is running WordPress, love the platform too much to lose it. So would that still work?