How to connect a file from another site?

Zdravstvute tell me how to connect a tether from another site ie there are 10 sites or more and knim need to connect your own advertising to the store with odgovaralo the Central site so as not to run at all to change the adverts and then only one came messages well, I think the way jet to try it and so, like all sites to connect the tether say the dates
June 10th 19 at 15:00
1 answer
June 10th 19 at 15:02
RTFM (reads the html, not the php source)

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