Historical clue formulations

• Warning next to a suspicious link, perhaps — 2026-07-24
• [Don't open this at the office!] — 2025-12-10
• Internet equivalent of an R rating — 2025-04-10
• Warning letters before a link — 2025-03-02
• Letters next to a blurred image, perhaps — 2024-05-17
• "Be mindful when clicking," in brief — 2024-03-28
• Initialism meaning "Be wary of looking at this in the office" — 2024-01-22
• Warning letters with a Reddit link — 2023-12-15
• Office warning letters — 2023-09-29
• Link warning — 2023-07-08
• [Wait until you're home to click this!] — 2023-05-31
• [Warning: Explicit content!] — 2023-05-16
• Warning accompanying a link — 2023-05-13
• Like R-rated pics, in brief — 2023-03-09
• "Careful where you open this" indicator — 2022-10-13
• "Office-inappropriate" tag — 2022-03-03
• Warning made with H.R. in mind — 2021-07-03
• Trailer advisory — 2020-06-05
• [Warning: explicit content] — 2019-11-27
• "Careful where you watch this," in emails — 2019-09-15
• Office-inappropriate, in web shorthand — 2018-10-02
• You might be careful opening something with this label — 2018-08-03
• [Avoid watching this in front of the boss] — 2018-05-13
• Office-inappropriate, briefly — 2018-04-25
• Letters of warning on internet sites — 2017-11-12
• [Warning: explicit content] — 2017-06-14
• Warning letters next to a web link — 2017-06-06
• Warning letters next to a link — 2017-04-26
• Warning initials above an Internet link — 2017-02-07
• Warning next to an internet link — 2016-09-29
• Warning letters on some graphic videos — 2016-08-07
• Tag for inappropriate online photos — 2015-10-14
• Online heads-up — 2015-03-14
• Office-inappropriate, in web shorthand — 2014-04-02