What is the oldest city in Scandinavia?

The oldest city in Scandinavia is Ribe.

archaeology.about.com/od/rterms/g/ribe.htm no longer exists

Lund, Sweden

http://www.cf.ac.uk/for/prospective/inter/erasmus/infoaboutpartnerinstitutions/sweden/index.html

Ribe in Jutlanbd

The town of Ribe, located in Jutland, is said to be the oldest city in Scandinavia, founded according to their town history between 704 and 710 AD. Ribe will celebrate its 1300th anniversary in 2010, and they are understandably proud of their Viking heritage. Excavations at the settlement have been conducted for a number of years by the Den Antikvariske Samling, who have also created a 'living history village' for tourists to visit and learn something about the Viking life. Ribe is also a contender as the place where the earliest Scandinavian coinage occurred. Although a Viking mint has yet to be discovered (anywhere for that matter), a large number of coins called Wodan/Monster sceattas (pennies) were found in Ribe's original marketplace. Some scholars believe that these coins were brought to Ribe through trade with Frisian/Frankish cultures, or were minted at Hedeby.

https://www.thoughtco.com/viking-sites-169280

Hedeby was the largest Nordic city during the Viking Age and used to be the oldest city in Denmark.[1] Denmark lost the territory on which Hedeby was located to Austria and Prussia in 1864 in the Second Schleswig War. As a result of these border movements, the site is now located in the province of Schleswig-Holstein in the extreme north of Germany. The name 'Hedeby' means the "town on the heath".

https://en.wikipedia.org/wiki/Hedeby