// Interactive Tools
TravTeks Tools
Free interactive tools for network engineers. No account required — everything runs client-side against public APIs.
my ip
Your public IP, ASN, ISP, location, announced prefix, and RPKI status — in real time.
ip rep
Open ports, CVEs, threat tags, ASN, geo, and RPKI. Powered by Shodan InternetDB.
bgp
Origin AS, announced prefixes, RPKI, and BGP paths for any IP/prefix/ASN. RIPE Stat.
looking glass
Live AS paths from US RIS collectors (NYC, PAO, MIA) with ARIN whois.
subnet
Split a CIDR and see every subnet, host range, broadcast, and wildcard.
latency
HTTP RTT to 12 global endpoints — Cloudflare, Google, Fastly, Vercel, and more.
dns
Query A, AAAA, MX, TXT, NS, CNAME, SOA, CAA, SRV in one shot. TTLs included.
propagation
Check DNS across 12 global resolvers at once. Spot stale records fast.
email
MX, SPF, DKIM, and DMARC for any domain. Score plus what to fix.
ssl
Cert expiry, issuer, SANs, and trust signals via Certificate Transparency.
dnssec
DS, DNSKEY, RRSIG, full chain validation. Run before adding a DS.
dnssec chain
Discover child zones via CT logs and verify the full DNSSEC chain for each.
ipv6
Expand, compress, classify IPv6. Prefix range and binary breakdown.
as-set
Expand an AS-SET via NLNOG IRRexplorer with PeeringDB enrichment.
cdn
Which CDN or cloud owns an IP? Live ranges from CF, AWS, GCP, GitHub, Fastly.
communities
Decode standard, large, well-known communities. Cogent, HE, NTT, Telia, Lumen…
trace
Walk root → TLD → authoritative. Spot misconfigured delegations and stale glue.
ptr
PTR record for any IPv4 or IPv6. Cross-verifies via Cloudflare and Google DoH.
whois
Live RDAP — registrar, dates, status codes, DNSSEC, nameservers.
headers
Grade HSTS, CSP, X-Frame-Options, and more. Mozilla HTTP Observatory.
tls
Protocols, ciphers, key-exchange, and known vulns. Qualys SSL Labs.
dnsbl
Check an IPv4 against 10 common block lists used by mail servers.
mtu
Effective MSS after stacking GRE, IPsec, VXLAN, GENEVE, MPLS, PPPoE, WG.
mac
Vendor for any MAC/OUI. Detects multicast, local, unicast. IEEE registry.
bdp
BDP and TCP window sizing. Know when RFC 1323 scaling is needed.
http/3
Does a site speak HTTP/3 (QUIC)? Reads negotiated protocol from the browser.
doh
Test any DNS-over-HTTPS endpoint. Status, RCODE, and RTT.
jwt
Decode JWT header, payload, signature. Standard claims with expiry warnings.
More tools coming. Read the Networking · Cloudflare · Security posts for context.
