Connection tools
12 tools that run in your browser. Nothing to install, nothing uploaded.
- Proxy / VPN Signal CheckCheck whether your traffic is being rerouted — and see what sites see.
- CNAME Chain TracerTrace a domain’s CNAME alias chain to where it finally points.
- DNS Lookup (all records)Query any DNS record type against two independent resolvers and compare their answers.
- Is This Site Down?Check whether a site answers from outside your own network.
- MX Record CheckerFind the mail servers a domain uses, in priority order.
- IP Location LookupSee the location your IP address reveals — and how rough that guess really is.
- ISP / ASN LookupFind out which network your traffic actually belongs to.
- My User AgentSee exactly what your browser announces to every site you visit.
- NS / Nameserver LookupSee which nameservers are authoritative for a domain.
- Reverse DNS (PTR)Find the hostname an IP address resolves back to.
- TXT / SPF ViewerRead a domain’s SPF record and see which servers may send its mail.
- What Is My IPThe address the internet sees when you connect.