Telecommunications company O2 has removed blocks on two pro-Israel websites.
The company had denied access to israellycool.com and elderofziyon.blogspot.com to users aged under 18.
The sites feature a range of pro-Israel content and reports on antisemitism.
O2 made the decision following a ruling by the British Board of Film Classification (BBFC), which oversees web content.
O2 press officer John Maley said in a statement: "The BBFC have confirmed to us that they have recently assessed the two websites and have overruled the grading service where these sites were classified as 18-plus content.
"As a result of the BBFC's decision, we will be removing the restriction for both sites."
O2 uses Symantec Rulespace, a company that classifies online content, and which Catherine Anderson, head of communications at the BBFC, said was "not a perfect science".
She added: "It's automatic filtering, so sometimes things which are borderline will get blocked and a person needs to look at it on a contextual basis. Sometimes keywords are flagged and it's blocked as a result."
Both sites include examples of antisemitic content on their pages in order to highlight and condemn its existence elsewhere online.
One JC reader, who had raised concerns about the block, pointed out that similar pro-Palestinian sites were freely accessible on the O2 network.
