Historical clue formulations

• With 39-Across, web crawlers, e.g. — 2026-08-05
• Where to see the sites — 2026-03-13
• Coffee shop amenity — 2024-05-10
• Premium flight amenity — 2022-05-29
• With 53-Down, blogger's bugbear — 2016-05-04
• Site site — 2007-12-07
• Surfing mecca — 2006-12-30
• E-mail deliverer, with "the" — 2003-06-02
• Revolutionary 1983 creation — 2000-12-30
• Surfing milieu — 1998-02-05
• Forum locale — 1997-12-28
• Modern time-waster? — 1996-06-22
• Logging site? — 1995-06-17