Many popular websites fell offline on Thursday in a widespread global outage of service. Affected services included Airbnb, UPS, HSBC bank, British Airways and the PlayStation network used for online games.
Visitors attempting to reach some sites received DNS errors, meaning their requests could not reach the websites.
One popular DNS provider, Akamai, reported “an emerging issue” with its Edge DNS service.
It has now tweeted that the issue has been fixed and “the service is resuming normal operations”.
Internet outage monitoring platform DownDetector had reported thousands of problems from its users across dozens o platforms.
Previously it said the issue had been a “partial outage” – and some users reported being able to access some compromised services in different regions.
As some websites began to appear again for users in Europe and the US, others in Asian nations continued to report problems.
DNS – short for Domain Name System – turns the human-readable web addresses we use, such as bbc.com, into addresses that point to a computer server somewhere online.
Disruptions often mean that a web browser cannot find the content it is looking for.