Subnet Vault

Bluetooth and NFC. Scan for nearby Bluetooth LE devices and beacons with live signal strength, then connect to one to browse the GATT services and characteristics it publishes — read-only, nothing is ever written to it. On iPhone, read NFC tags for their technology, UID, and NDEF contents, and write URL, text, or Wi‑Fi credential records to a tag. Three new web and DNS tools. Inspect a URL's HTTP response headers and timing, compare a domain's records across public DNS resolvers, and examine a host's SSL/TLS certificate and chain. A faster way to find tools. The picker is now a searchable gallery grouped by category, covering all seventeen tools. Saved results sync across your devices over iCloud. Rebuilt for iPad. In landscape, inputs and results sit side by side; every screen now uses the full width of the display. More in Learn. New reference tables for Bluetooth services, characteristics and manufacturer IDs, NFC tag standards and NDEF record types, plus new glossary terms for both.