Fast. Private. Free.
Network tools without giving up your data
Check your IP, measure latency, resolve DNS, see if a service is up, or audit any page's SEO. Five free tools, in your browser, no account needed.
Pick a tool
What is my IP?
Your public IP, approximate location, ISP, and whether your connection is exposed, behind a VPN, or using a proxy. Loaded in under a second.
Open →Domain inspector
Type any website, get its DNS records, resolved IPs, HTTP reachability, and round-trip latency in one shot. Or keep pinging 9 global servers for live latency.
Open →Is it down for me?
Paste any URL to see if it is up for you, or browse live status of 50+ popular services with 24-hour incident history.
Browse all tools
Thirteen free utilities, grouped by what they do.
Network & IP
5 toolsWhat is my IP
Public IP, location, ISP, VPN/proxy/Tor detection.
→IP lookup
Look up any IPv4 or IPv6 — geolocation, ASN, owner.
→IP reputation
Check any IPv4 against 7 DNS blacklists (Spamhaus, Spamcop, ...).
→VPN detector
See if an IP is a known VPN, proxy, or Tor exit.
→Subnet calculator
Paste a CIDR, get network, broadcast, host range.
→DNS & connectivity
3 toolsDomain inspector
DNS + HTTP + 9-server latency in one shot.
→DNS lookup
A, AAAA, MX, TXT, NS, CNAME, SOA via DNS-over-HTTPS.
→DNS propagation
Check a record across 8 global resolvers.
→Web status & headers
3 toolsIs it down
URL reachability + 50+ service status feeds.
→Bulk URL status
Check up to 20 URLs in one pass — status + latency.
→HTTP headers
Full response headers + 0-100 security grade.
→SEO
1 toolHow it works
I started this because every other IP / DNS / "is it down" site I tried wanted me to fill out a captcha, watch a video, or sit through a popup asking for my phone number. I wanted something I could open in a new tab, get my answer, and close — without a tracking pixel, without an analytics dashboard, without a subscription banner. So I built it.
The trick is that every check runs in your browser. When you click What is my IP?, your browser makes a fetch() to a Cloudflare Worker, which forwards to ip-api.com for geolocation enrichment and returns the parsed JSON. The Worker is stateless — it doesn't write to any database, doesn't read its own logs, doesn't have a session store to look up. The whole request is under 200 lines of TypeScript, all of it open source on GitHub.
This matters more than it sounds. Most "what is my IP" sites route your request through their servers so they can log it. They sell the request log to ad networks or use it to fingerprint your browser. We don't have a database to sell because there isn't one. The Worker code is on github.com/appenzellerdigitalstore-stack/sitetrace — you can grep it for INSERT or fetch(... and decide for yourself.
For DNS lookups, we use DNS-over-HTTPS — your browser encrypts the DNS question to Cloudflare or Google, gets the answer, and renders it. We never see the domain name. For service status, we query each provider's official status page directly from your browser (most of them use Atlassian Statuspage, which exposes a JSON endpoint at /api/v2/summary.json), then render the result locally. The status check tells you what the service itself says, not what some random monitoring provider thinks.
For email deliverability, we send the domain to our Worker which queries SPF, DKIM (on 20 common selectors), DMARC, MX, and BIMI in parallel and gives you a 0-100 score plus a list of what to fix. The Worker is stateless — same model. For SEO, same thing: the Worker fetches the HTML, extracts the title, meta description, H1, canonical, Open Graph, image alts, and renders a 0-100 score.
For RDAP/WHOIS, we query the public RDAP endpoint for the TLD (e.g. rdap.org for .com, .net, etc.). For Wayback snapshots, we query the Wayback Machine's CDX API. For AI content detection, we send the URL to the sitetrace-api Worker which returns a 0-100 percentage. Nothing on our side stores or indexes your input.
Everything else is curl-able JSON. If you want the same checks from a script, from CI, or from a server, the data is the same data — exposed as REST + JSON at api.sitetrace.it.com. The free tier gives you 100 calls per day with no signup, just an IP-based rate limit. The Hobby tier at $9.99/month gives you 5,000 calls per day with an API key. The Pro tier at $30/month gives you 30,000. That's the whole pitch.
Frequently asked questions
What is SiteTrace?
SiteTrace is a small set of free, browser-based network utility tools: thirteen of them, covering IP lookup, ping, DNS, HTTP status, live service status, email deliverability, and SEO audits. No account, no app to install, no data stored on our servers.
Is SiteTrace free?
Yes. All thirteen web tools are free to use, with no rate limits, no signup, and no paywall. The site is funded by unobtrusive display ads and optional donations via PayPal.
Do I need to install anything?
No. Everything runs in your browser. Open the page, get your answer, close the tab. There is no app, no extension, no plugin, and no download.
Does SiteTrace see what I look up?
No. Your IP lookup, ping test, DNS lookup, and status checks all happen between your browser and the relevant public service. SiteTrace does not sit in the middle, does not log your requests, and does not store the responses.
Can I use SiteTrace from my phone?
Yes. The site is responsive and works on any modern browser. The IP checker works the same on mobile as on desktop, though the ping and DNS tools work best on a stable Wi-Fi or wired connection for accurate results.