species identification - What insect is this? Looks like a spider but with six legs and long antennae - Biology Stack Exchange

I've been spotting some of these insects in my house lately, they look like spiders but it seems like they have six legs and antennae instead of eight legs. Can someone tell me what insect is this?

spider - Students, Britannica Kids

This bug was crawling like a spider, but it has 6 legs and 2 antennae. It seems to be friendly to me. Its backside almost looks like a lobster's tail. : r/whatsthisbug

Wingless greenbugs are green with a darker green stripe along the top

species identification - What kind of insect is this? It looks like a huge spider with one long antenna and six legs - Biology Stack Exchange

spider - Students, Britannica Kids

species identification - What is this insect with scary antennae? - Biology Stack Exchange

species identification - What is this insect (or spider)? - Biology Stack Exchange

What bug has 6 legs? Is black and orange with 2 long antennae in Central Maine? - Quora

Fabre's book of insects

species identification - What insect is this? Looks like a spider but with six legs and long antennae - Biology Stack Exchange

Superphylum Ecdysozoa, Boundless Biology

Catalogue of Organisms: August 2008

Scientific Opinion addressing the state of the science on risk assessment of plant protection products for in‐soil organisms - - 2017 - EFSA Journal - Wiley Online Library

Spider Crickets Are Real, And Here's Why You Don't Want Them In Your Home - Farmers' Almanac - Plan Your Day. Grow Your Life.

How drain flies manage to almost never get washed away