This is a Google search operator that tells the engine to look for specific text within the URL of a website. pk: Often stands for "Primary Key" in database terminology.
The primary reason people search for this string is related to . URLs that expose database parameters are often targets for a type of cyberattack called SQL Injection (SQLi) . inurl pk id 1
It often indicates that the site may not be "sanitizing" its inputs, making it easy for bots to find and exploit. How to Protect Your Website This is a Google search operator that tells
Security professionals use these queries to find "low-hanging fruit"—websites with outdated structures that need urgent security patches. inurl pk id 1