For users who are logged into Tumblr, but do not have "Safe Mode" turned on, NSFW blogs should show up on search and tag pages; NSFW pages are indexed by search engines.
Tumblr's longstanding policy regarding NSFW content has not changed and emphasizes the importance of free expression.
Tumblr Head of Sales, Lee Brown, has quoted the average ad purchase on Tumblr to be nearly six figures.
Development of Tumblr began in 2006 during a two-week gap between contracts at David Karp's software consulting company, Davidville (housed at Karp's former internship with producer-incubator Fred Seibert's Frederator Studios, which was located a block from Tumblr's current headquarters).Karp had been interested in tumblelogs (short-form blogs) for some time and was waiting for one of the established blogging platforms to introduce their own tumblelogging platform.In September 2015, Tumblr changed how threads of comments on reblogged posts are displayed; rather than a nested view with indentations for each post, all reblogs are now shown in a flat view, and user avatars were also added.The change was intended to improve the legibility of reblogs, especially on mobile platforms, and complements the inability to edit existing comments.Their first advertising launch started in May 2012 after 16 experimental campaigns.
In 2013, Tumblr began allowing companies to pay to promote their own posts to a larger audience.
This launch came only two months after Tumblr announced it would be moving towards paid advertising on its site.
The site became available to Black Berry smartphones on April 17, 2010, via a Mobelux application in Black Berry World.
As addressed in these policies, we are constantly taking measures to ensure our users can avoid this content unless they'd like to see it.
Anyone can opt-in by disabling Safe Mode in their Dashboard Settings.
Sexually explicit videos are not allowed to be uploaded to the website, but videos hosted elsewhere may be embedded.