Halloween is different this year with social distancing and the pandemic. I was talking to one person who said they were going to let their kids go out for a little while. But throw out all the candy they got on Halloween.
Looking at three of the top sites for Halloween we see they are still pretty busy but not as busy as last year.
Halloween.com the website is a gateway to all things Halloween, from links to costumes, supplies, masks, candy, haunted houses. The site has an Alexa ranking of 719,270. I would imagine with Covid-19 Halloween is not as big a deal in 2020. Last year the Alexa ranking on Halloween was around 400,000.

Registrar: | NETWORK SOLUTIONS |
Creation Date: | August 30, 1994 |
Expires: | August 29, 2029 |
HalloweenCostumes.com after Halloween itself probably the next most popular Halloween related keyword combo. Owned by Fun.com The Alexa rank is 13,555 .

Registrar: | GODADDY |
Creation Date: | September 7, 1995 |
Expires: | December 2, 2021 |
HalloweenCandy.com another popular search term at this time of the year. This domain name redirects to the owner’s other website, CandyWarehouse.com
Registrar: | GODADDY |
Creation Date: | January 6, 1998 |
Expires: | June 25, 2020 |