Large spike in visits?

[AgeOfVintageUK]

• Hi, I have had a huge spike in visits today 478 from direct traffic. This is unusual for me. Could this be a result of a bot? What else could cause this?
• Thank You! 

[JJewellerySuppliesUK]

Probably a bot unless you have been featured somewhere.  Of course, you will get more now from the forum. 

[CuriousityShop]

Web Crawler bots often cause spikes like that, especially if you just listed stuff.