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Internet and network

Speed and call quality testTest delay, jitter and speed, with a focus on phone calls.My IP addressYour public IPv4 and IPv6 addresses, provider and address range.WhoIs lookupWho owns a domain or IP address, when it expires, and its DNS.DNS reportEvery DNS record for a domain, with email setup checked.IP subnet calculatorWork out a network's range, mask and hosts, and split it into subnets.

Computers and devices

Update checkIs this computer, phone and browser up to date? With links to update.Camera and mic testCheck your webcam and microphone before a call.Test print pagePrint an A4 page to check a printer: edges, text, line art and colours.

Make and print

Clean textStrip hidden characters, smart quotes and odd spaces from pasted text.QR code makerMake a QR code for a link, contact or message. Nothing leaves your browser.Wi-Fi QR posterPrint an A4 poster that lets guests join your Wi-Fi by scanning.

Surftec support

Remote supportLet a Surftec engineer connect to your computer to help you.All workingA full-screen confirmation that everything is up and running.

Surftec

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Update check

Checks whether this device and its web browser are up to date, as far as your browser lets a website see, and links straight to the right update settings.

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This device

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This browser

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How to update

Where the information comes from

Your browser reports the operating system and browser version; nothing is installed or scanned. Latest versions come from the makers' public release feeds, checked every 6 hours:

  • Apple macOS and iOS: SOFA (Mac Admins Open Source), built from Apple's security releases
  • Google Chrome: Chrome VersionHistory · Microsoft Edge: Edge release feed · Mozilla Firefox: Mozilla product details
  • Windows: Microsoft releases security updates on the second Tuesday of each month. Websites can't see a PC's update level, so Windows Update is the place to check.

About this tool

Out-of-date software is one of the main ways computers are attacked. This check reads the version your browser reports and compares it with the latest releases published by Microsoft, Apple, Google and Mozilla, then links to the right place to update.

Browsers only show part of the picture: Windows hides its exact build number, so the check can tell Windows 10 from 11 but not which monthly update is installed. Follow the links to run Windows Update to be sure.

Common questions

Is Windows 10 still safe to use?

Windows 10 support ended on 14 October 2025. Computers enrolled in Extended Security Updates keep receiving security fixes until the end of that programme; others should move to Windows 11.

How often should I update?

Install security updates as soon as they arrive. Microsoft releases them on the second Tuesday of each month, and browsers update every few weeks.