Terms of Service

whatismyip.technology is a free collection of network and privacy tools. IP lookup, VPN leak test, DNS leak test, WHOIS, port scanner, SSL checker, subnet calculator, ping test, and more. Fifteen tools and counting. All free. No signup. No credit card. No subscription tiers. Just open the page and use it.

These terms apply to everyone who uses this website. By using the site you're agreeing to these terms. If you don't agree, you don't have to use the site. Simple enough.

There's no account creation. There's no age gate. There's no registration flow. You visit, the tools work, you leave. We don't know who you are. These terms apply anyway because using a website is using a website, even when the website is doing its best to stay out of your life.

Every tool on this site is completely free to use. We mean that. There's no free tier with a paid upgrade. There's no rate limiting that unlocks when you subscribe. There's no "premium" version of any tool behind a paywall.

The site runs on Vercel's infrastructure. The geolocation data comes from ip-api.com. Domain data comes from RDAP/WHOIS public registries. SSL data comes from crt.sh. DNS queries go to dns.google. All of these have public, free-to-use APIs. We use them. You benefit.

We reserve the right to add a free API endpoint someday (see whatismyip.codes), add more tools, or make the site better in ways we haven't thought of yet. We don't reserve the right to retroactively start charging you for stuff you were already using for free. That would be gross.

If something changes in a material way (say, a tool gets paywalled), we'll update these terms with a new date and the change will be obvious on the site. No gotchas.

Pretty much anything reasonable. Check your own IP. Test your VPN. Run a WHOIS lookup on a domain you own or are researching. Scan common ports on your own server. Check if your IP is on a blacklist. Calculate subnets for your home network. Test ping latency to our edge servers.

Use it for work. Use it at home. Use it to settle arguments about whether your VPN is actually doing anything. Use it to prep before buying a domain. Use it to show a client their SSL cert is about to expire. These are all good uses.

You can also use the data you get from these tools however you want for personal, professional, or educational purposes. We don't restrict what you do with information you look up using publicly available data sources.

A few things will get you in trouble. Not with us specifically (we have no accounts, no tracking, no way to ban you), but they're still off-limits and they still violate these terms:

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  Automated bulk abuse. Don't hammer our API endpoints with thousands of automated requests per minute. We don't rate-limit aggressively because most people don't need us to, but if you're running a bot that makes 50,000 port scan requests or WHOIS lookups per hour, you're going to have a bad time and so will everyone else using the site.
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  Harassing or stalking people with the tools. This one should go without saying. IP lookup data is not a surveillance tool. The data is approximate and comes from public databases. Using it to track, harass, threaten, or stalk another person is a violation of these terms, various laws depending on where you live, and also just basic human decency.
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  Scanning systems you don't own. The port scanner and ping tools are for checking your own infrastructure. Using them to probe systems you don't own and don't have explicit permission to test is unauthorized access territory in most jurisdictions. Don't do it. If you have legitimate security research needs, those come with their own legal frameworks and this tool isn't the right one for that work anyway.
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  Trying to break the site. SQL injection attempts, XSS attacks, trying to exploit the API endpoints, attempting to access other users' data (there is none to access, but still). This violates the Computer Fraud and Abuse Act in the US, the Computer Misuse Act in the UK, and equivalents everywhere else.
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  Republishing as your own tool. You can't scrape this site and rebrand the content as your own IP lookup tool. You can link to us, embed our API responses in your own projects, cite data you found here, whatever. But straight-up plagiarism of our UI or presenting our tools as your own product is out.

The tools pull data from public third-party sources. IP geolocation comes from ip-api.com. WHOIS data comes from public RDAP registries. SSL certificate data comes from crt.sh and Certificate Transparency logs. DNS answers come from Google's public DNS. Port responses come from whatever server you're testing.

We're a pass-through. We don't maintain our own IP database. We don't have proprietary data sources. If ip-api.com says your IP is in Boston when you're actually in Newark, that's an ip-api.com accuracy issue, not ours. Geolocation data is inherently approximate and based on registry information that ISPs update on their own schedule.

Don't use IP geolocation data to make high-stakes decisions about where someone is. The data might be off by a city, a region, or in some rare cases, an entire country. It tells you what public registration databases say, not ground truth.

Similarly, WHOIS data reflects what domain registries have on file. If a registrant uses privacy protection, the WHOIS will show the proxy information, not the real registrant. That's by design in the WHOIS system.

This is a free service. It's provided "as is." That means we don't guarantee that any particular tool will be available at any given moment, that the data will be 100% accurate, or that the site will work perfectly in every browser on every device in every network environment.

We try really hard to keep everything working. The uptime is excellent. The tools work well. But promising 100% uptime or perfectly accurate data for a free service would be something we couldn't actually back up, so we won't.

The DNS leak test in particular is a best-effort client-side detection. It queries your DNS resolver and compares the result to your public IP. This can surface anomalies but it's not a certified security audit. If you need to know with absolute certainty whether your VPN has DNS leak protection, check the VPN vendor's own documentation and use their official leak test.

Likewise, the port scanner only checks common ports and only scans your own IP (or whatever IP you provide). It's useful for getting a quick read on your firewall rules. It's not a substitute for a proper security assessment with a tool like Nmap.

To the maximum extent permitted by applicable law, whatismyip.technology, its operators, and its contributors will not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of, or inability to use, this website or its tools.

What does that mean in practice? If you use the port scanner and it turns out you scanned the wrong IP and caused a problem, that's on you. If you relied on our IP geolocation to determine a user's country for compliance purposes and it was wrong, that's on you for not using a more rigorous solution. If the site is down during a critical moment, we're sorry, but the maximum liability is zero because there's no contract and no payment.

This isn't us being cold. It's just the reality of running a free public tool. The tools are here to be useful. We built them because we use tools like these ourselves. But "useful" and "legally liable for your business decisions" are different things.

Several tools on this site make requests to third-party APIs on your behalf. Here's what goes out and to where:

These services have their own terms of service and privacy policies. We can't control what they do with request data on their end. That said, for ip-api.com for example, the only thing sent is your IP address (which they'd receive from any HTTP request you make to them anyway). For the domain lookup services, the domain name you query is sent — not your IP address.

We also link to external sites occasionally (API docs, DNS provider pages, Wikipedia, registry sites). We don't vet every external site constantly. A link from us isn't an endorsement.

The design, code, copy, and structure of this site belongs to whatismyip.technology. The IP address geolocation data, WHOIS records, DNS answers, SSL certificate records, and similar factual outputs of the tools are either publicly available data or generated by third-party APIs. We don't claim ownership of that data.

You can reference data you found here. You can screenshot results for your own records. You can share results with other people. You can build tools that call our API endpoints (see whatismyip.codes). What you can't do is copy this site wholesale and present it as your own thing.

The tool names are descriptive, not branded trademarks. "IP Lookup," "DNS Leak Test," and "Port Scanner" are generic terms. What we do own is the specific implementation: the code, the design, the way the tools are presented, the educational content on each tool page.

We might update these terms occasionally. Adding a new tool. Clarifying something that was confusing. Adjusting language around a new feature. The date at the top of this page will change when that happens. The changes will be visible in that document.

We won't send you an email when terms change because you don't have an account and we don't have your email. Check the date at the top if you care. We won't make sneaky material changes without updating that date.

If we ever make a change that significantly restricts how you can use the site (which we don't plan to), we'd make it really obvious on the homepage, not just update the fine print and hope nobody notices. We think that's the decent thing to do.

These terms are governed by applicable law. Because this is a free public website with no commercial transaction and no user accounts, jurisdictional questions are genuinely unusual. We're not going to name a specific country's courts as the venue for legal disputes over a free IP lookup tool. If there's ever a real legal issue (which would be surprising given what this site actually does), it would need to be resolved under whatever jurisdiction makes sense given the parties involved.

If you're in the EU, the tools comply with GDPR to the extent applicable: no personal data is stored, no tracking, no cookies, no profiling. If you're in California, CCPA is similarly satisfied: no personal information is sold or shared with data brokers because no personal information is collected. If you're somewhere else, the same applies.

If any provision of these terms is found to be unenforceable or invalid by a court of competent jurisdiction, that provision will be limited or eliminated to the minimum extent necessary, and the remaining provisions will continue in full force and effect.

In plain terms: if one part of this turns out to be legally unworkable somewhere, the rest of it still stands. We're not trying to get away with anything. The goal of these terms is to describe how this site works honestly and set reasonable expectations. If a specific clause doesn't hold up in court, that doesn't void the whole document.

If you notice something broken, a tool giving wrong results, a serious bug, or someone abusing the service in a way that's affecting performance for everyone, you can reach us at the contact listed on the about page. We do read messages.

If you believe our tools are being used to harm you specifically (for example, someone using the IP lookup tool to try to locate you), the right place to report that is your local law enforcement and the platform where the harassment is occurring, not us. We are a lookup tool. We can't investigate individual incidents, and we don't have any data to hand over even if we wanted to help.

If you're a security researcher who's found a vulnerability in the site, we'd actually love to hear about that. Responsible disclosure is appreciated. No bounty program yet, but we'll at least say thank you and fix it fast.