I assume they just pretend to be the Googlebot so the site just gives the text.
Won’t work for any popular site. You can try that easily by using extensions to set the user agent. If you are not checking the public list of IPs that Google publishes for the crawler you are doing it wrong.
alt Hacker News
Won’t work for any popular site. You can try that easily by using extensions to set the user agent. If you are not checking the public list of IPs that Google publishes for the crawler you are doing it wrong.