Search map website [quadratic] [for search map, search fan, search book]

Many times I see someone asking for the original picture , In fact, many pictures can be found on these websites , Here are the websites and eating methods .[ In fact, the main thing is to have corresponding scientific tools , Otherwise, you won't be able to see the link that others found for you ]

https://saucenao.com/

https://trace.moe/

https://ascii2d.net/

https://yandex.com/images/

The above are all good search websites [ Generally only quadratic element ], What do you use ... It shouldn't be difficult .. The interface is very brief and clear .