cutycapt is a nice tool that can allow you to script or automate collecting screenshots of websites.
As an example, after you download or install cutycapt (or use an OS like Kali that already has it installed) then you type
cutycapt --url=http://neonprimetime.blogspot.com --out=neo.png
And boom you have a screenshot in a png file.
Now add this command to some python script for example and you could in theory grab screenshots of an entire website if needed.
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