The latest figures from ABC report an 11 per cent increase in web traffic for last month, compared to June, taking the Mail Online to 134,244,177.
The figure of 134 million had already been reported earlier this month, which, according to this Guardian article, was based on "the publisher's internal traffic logs".
The Guardian also reported at the time that this was "propelled by news stories including the royal birth and death of Glee star Cory Monteith".
In a press release the Mail Online confirmed July was its "best ever month" for online traffic, as well as enjoying its "best ever day" on 22 July, with a reported 10. 6 million "global unique browsers". This was the day of the royal birth, for which the Mail Online also reports a daily UK unique browser figure of 4.5 million.
July was also said to be its "best ever month for the iPhone app", as well as "best ever month for Android app" and "best ever month for video plays", the latter of which reportedly grew 46 per cent month-on-month.
The Mail Online's 11 per cent increase in traffic for July was not the highest traffic growth month-on-month however, with the Evening Standard top of the audited UK newspaper websites with a rise of 13.4 per cent, closely followed by Metro with a 13.2 per cent increase.
Increases were also recorded for the websites for the Independent, the Sun, Mirror Group Digital and the Telegraph, of 11.3 per cent, 7.4 per cent, 1.4 per cent and 0.6 per cent respectively.
This is the last ABC-reported web traffic results for the Sun before it erected its paywall at the beginning of August.
The ABC report did not include a figure for the Guardian website for total monthly browsers, but the news outlet told Journalism.co.uk its audited figure was 84.8 million, a slight drop on June's figure of 84.9 million.
The Guardian's average daily browsers - which were reported in the ABC results - fell by 1.7 per cent month-on-month.
All other audited sites recorded increases in average daily browsers, month-on-month, with Metro securing the highest increase of 15.1 per cent, taking it to more than 480,000 unique browsers.
Update: This article was updated to include further details from a Mail Online press release