Network & hardware

Find the autonomous system number (ASN) of any IPv4 or IPv6 address. See the AS name, the organization that runs the network, the BGP prefix the address is routed in, and the registry, country, and dates of both.

Check where a URL redirects. See every hop of the redirect chain with its status code, such as 301, 302, 307, or 308, its IP address, and its response time, and find redirect loops and the final URL. Up to 10 redirects are followed.

Find the subdomains of a domain using DNS records. The tool reads the domain's NS, MX, SOA, SRV, and SPF records and checks 350 common names like www, mail, api, and dev, then lists each subdomain with its IP addresses and CNAME target. Wildcard records are detected.

Calculate peak and effective memory bandwidth for DDR, LPDDR, GDDR and HBM from data rate, bus width and channel count.

Test your Xbox Series X|S controller in your browser. Press the buttons to see them light up, check the sticks for drift, see how far the triggers pull and try the vibration.

Test your Xbox One or Xbox One S controller in your browser. Press the buttons to see them light up, check the sticks for drift, see how far the triggers pull and try the vibration.

Test your Xbox Elite Series 2 or Elite controller in your browser. Press the buttons and back paddles to see them light up, check the sticks for drift and see how far the triggers pull. Chrome and Edge on Windows show the paddles as P1 to P4.

Test your wired or wireless Xbox 360 controller in your browser. Press the buttons to see them light up, check the sticks for drift, see how far the triggers pull and try the vibration.

Test your PS5 DualSense controller in your browser. Press the buttons and the touchpad to see them light up, check the sticks for drift, see how far L2 and R2 pull and try the vibration.

Test your PS5 DualSense Edge controller in your browser. Press the buttons and the touchpad to see them light up, check the sticks for drift and see how far L2 and R2 pull. Back buttons show up as the buttons you assigned to them.

Test your PS4 DualShock 4 controller in your browser. Press the buttons and the touchpad to see them light up, check the sticks for drift, see how far L2 and R2 pull and try the vibration.

Test your PS3 DualShock 3 or Sixaxis controller in your browser. Press the buttons to see them light up, check the sticks for drift and see how far L2 and R2 pull.

Test your Nintendo Switch Pro Controller in your browser. Press the buttons to see them light up, check the sticks for drift, try ZL, ZR and Capture, and feel the vibration.

Test your Nintendo Switch Joy-Con controllers in your browser and check the sticks for Joy-Con drift. Press the buttons to see them light up, including SL and SR, and try the vibration.

Test your 8BitDo Pro 2, Ultimate, SN30 Pro or other 8BitDo controller in your browser. Press the buttons to see them light up, check the sticks for drift and see how far the triggers pull.

Test your Logitech F310, F510 or F710 gamepad in your browser. Press the buttons to see them light up, check the sticks for drift and see the value of every button and axis.

Test your Google Stadia Controller over USB or in Bluetooth mode in your browser. Press the buttons to see them light up, check the sticks for drift, see how far L2 and R2 pull and try the vibration.

Test your GameSir G7, Nova, Cyclone, T4 or other GameSir controller in your browser. Press the buttons to see them light up, check the sticks for drift, see how far the triggers pull and try the vibration.

Test your Flydigi Vader, Apex or Direwolf controller in your browser. Press the buttons to see them light up, check the sticks for drift, see how far the triggers pull and try the vibration.

Test your Razer Wolverine V3, V2 or other Wolverine controller in your browser. Press the buttons to see them light up, check the sticks for drift, see how far the triggers pull and try the vibration.

Test your PowerA Enhanced Wired, Fusion or other PowerA controller for Xbox in your browser. Press the buttons to see them light up, check the sticks for drift, see how far the triggers pull and try the vibration.

Test your PDP Afterglow, Rematch or other PDP controller for Xbox in your browser. Press the buttons to see them light up, check the sticks for drift, see how far the triggers pull and try the vibration.

Test your Turtle Beach Recon, Stealth Ultra or other Turtle Beach controller for Xbox in your browser. Press the buttons to see them light up, check the sticks for drift, see how far the triggers pull and try the vibration.

Look up the A, AAAA, CNAME, MX, NS, TXT, SOA, SRV or CAA records of any domain, including names like _dmarc.example.com.