I use DDG on Firefox, on WIN 10. Sometimes shopping sites (I-herb, AliExpress, some more I can't remember) start suddenly change to Spanish because they think I'm surfing from Columbia (saw the flag in a few of them). I'm always surfing from Israel.
I scanned with both Avira and Malwarebyes and it seems that everything is OK.
Is DDG bouncing my IP to Columbia? Is it somekind of weird Malware?