Because these sites do not use the standard Domain Name System (DNS), they are much harder for governments or ISPs to block. The Evolution of Onion Addresses

Unlike the surface web, there are no "verified" badges. Scammers often create "mirror" sites with nearly identical URLs to steal credentials.

Unlike standard URLs (e.g., .com or .org), addresses are not registered through a central authority. Instead, they are cryptographic keys that provide:

Hidden services are often unmoderated, making them hotspots for phishing and malware.

Both the user and the website host can remain anonymous.

Since the v2 format is obsolete, many links like qlcd3utezilsips2.onion may lead to dead ends or "Onion Site Not Found" errors.