Back

How does that website know where I live?

5 July 2026

The spooky “Good evening, Manchester!” moment

You’ve opened a website, and it greets you with “Good evening, Manchester!” and your first thought is: Right. Which one of you told them? Don’t worry—it’s not psychic powers, and your phone isn’t secretly spying on you. Unless you’ve been oversharing every thought on social media, it’s probably just IP geolocation—the tech equivalent of guessing someone’s postcode from the accent they mumble through a kebab.

IP addresses: Your digital return address

Every device connecting to the internet gets an IP address, a numeric label that works a bit like a return address on a letter (less charming, more colons if it’s IPv6). Internet providers assign these addresses in big regional blocks, and companies like MaxMind and IP2Location gather this data into huge databases mapping IP ranges to countries, cities, and sometimes even neighbourhoods.
So when you visit a website, it checks your IP against one of these databases and voilà—“Ah, this one’s from Leeds.” Not exactly Sherlock-level deduction, but surprisingly effective.

Why it’s not always perfect

IP geolocation isn’t 100% precise. Your village might be resolved to the nearest city, or worse, a default entry could place you in a random field in Kansas! Bad data can cause chaos—but it’s usually harmless.
And if you’re worried about your exact house number, rest easy. Websites would need your ISP’s internal records to get that, which are tightly guarded. Only a court order could lift that veil.

When accuracy improves

IP geolocation can be more precise if you use apps or services that access GPS, Wi-Fi positioning, or mobile networks—but only if you explicitly share that data. Otherwise, a plain IP lookup just gives a rough “local-ish vibe.”

Next time a website welcomes you by your city, don’t panic. It’s not magic, it’s not sinister surveillance, and there’s no crystal ball involved. It’s just your internet address doing the talking.
Want to know more? Watch our Lesson Hacker video on our YouTube channel.

For more Lesson Hacker videos, check out the CraignDave YouTube playlist HERE.

Visit our website to explore more cutting-edge tech news in the computer science world!

Related posts

UTF-8 is witchcraft, right?

Ever wondered how your computer can happily store a simple English letter, an emoji, a pound sign and characters from […]

22 September 2026

Why teaching models keep returning

Teaching frameworks can provide valuable guidance, but when they become rigid formulas, they can undermine professional judgement. The goal isn’t identical lessons – it’s consistently effective teaching.

18 September 2026

Do GCSEs doom students to fail?

GCSE results may look stubbornly flat, but the reality behind the numbers tells a very different story. Why has further improvement become so difficult, and are we measuring success in the right way?

11 September 2026

Will Quantum Computers Break Encryption?

Could quantum computers really break encryption and put our data at risk? We explore the reality behind the hype, from qubits and Shor’s Algorithm to the future of post-quantum security.

7 September 2026

Is AI a panacea?

AI is moving from experimentation to expectation in schools. But as adoption grows, the focus must shift from simply using AI to using it well. Discover how schools can balance workload, learning, safety and professional judgement — without losing the human element of great teaching.

4 September 2026

Digital ID cards: The future of work or a privacy nightmare?

Are digital ID cards the future of convenience or a threat to privacy? Explore the benefits, risks, and debate behind the UK’s proposed digital ID system.

31 August 2026

Why does your phone get dimmer in the sun?

Ever wondered why your phone dims when you’re in the sun? It’s not being lazy—your device is protecting itself from heat, battery strain, and OLED burn-in.

28 August 2026

Do we really use database normalisation in the real world?

Database normalisation keeps data consistent and tidy, but in the real world, speed often wins over strict rules. Discover how companies like Twitter balance correctness with performance.

26 August 2026

Why do batteries get worse over time?

Ever wondered why your phone battery doesn’t last like it used to? Lithium-ion batteries degrade over time due to stress, heat, and chemical reactions, slowly reducing their charge capacity.

24 August 2026