The sites of HSBC, ITV and Waitrose were among those hit by a broad blackout that momentarily caused disturbance on Thursday evening.
Major internet banking administrations – including Barclays, TSB, the Bank of Scotland, Tesco Bank and Sainsbury’s Bank – were either altogether or in part distant for a brief period.
Airbnb, the PlayStation Network and Steam additionally encountered the impermanent glitch, with some appearance clients a DNS blunder.
Unsubstantiated reports propose the issue might be connected to a presentation item offered by Akamai, an American firm, which started exploring issues soon after 5pm UK time.
Its Edge DNS administration is intended to further develop stacking times and battle assaults, utilizing an organization of workers spotted all throughout the planet.
Afterward, Akamai tweeted: “We have executed a fix for this issue, and in view of current perceptions, the help is continuing typical tasks.
“We are proceeding to screen the circumstance and can affirm this was not an aftereffect of a digital assault on the Akamai stage.”
The occurrence follows a comparative blackout a month and a half prior, which influenced conspicuous sites including gov.uk.
The US-based Fastly said the issues experienced on 8 June were down to an “unseen programming bug” in its framework, which was set off by a solitary anonymous client who refreshed their settings.