How to get a words from a website in lua?

So I have this code but I want to get the word from the website

I want to use this to protect my project from leakers.

This is what I have

str = 'word'
if string.find(str, "word") then
end

So I want to get the word from a website.txt

So if I want to remove access I edit the file

I was thinking about

str = 'website'
if string.find(str, "word") then
end
But I don't think this will work...