IPTOOL

Records, zone and whois

DNS Lookup Query A, MX, NS, TXT and other types via the resolver you pick — completely free. DNS History A, AAAA, CNAME, MX, NS we have seen (first/last). Neighbors by IP. Not a global archive — grows from site lookups and crawls. Reverse DNS IP to PTR: FCrDNS, in-addr.arpa / ip6.arpa. Paste a URL or IP:port. DNS Propagation Ask the same record of 12 public resolvers from this host; see majority vs drift. Not a global PoP network. DNS Health Check DNS health grade: A/NS/MX, SPF, DMARC, DKIM, Spamhaus ZEN. Paste a URL. DNSKEY Lookup DNSSEC: DNSKEY (KSK/ZSK), algorithm, parent DS. Paste a URL. Recursive DNS Test whether a DNS server is an open resolver. Whois Lookup Domain whois + RDAP: days left, registrar, TRABİS .tr. Port 43 empty? RDAP fills the card.

SPF, DMARC, MX

SPF Checker Validate the SPF record, policy and include chain. DMARC Checker Read the DMARC policy and reporting tags. SPF Generator Build SPF TXT from ip4, ip6, include, a and mx — free forever. DMARC Generator Build a DMARC TXT with p=, rua= and pct. MX Lookup MX preference, TTL, IP, SMTP diagnostics and blacklist. Email Sender Compliance Checker Check Gmail, Yahoo and Outlook bulk sender requirements: SPF, DKIM, DMARC. Email Health Check Email deliverability health: SPF, DKIM, DMARC, MX, PTR and blacklist in one report. DMARC RUA / Inbox RUA aggregation readiness, external report auth, optional XML summary, and inbox auth-stack checks. No mailbox hosting. Adaptive Blacklist Discover sending IPs from SPF and MX, scan DNSBLs. Continue with account monitors. DKIM Checker Find the DKIM key by selector and validate the RSA record. DKIM Generator Build a 2048/4096-bit RSA DKIM key pair, TXT and BIND record. Not stored. Mail Server Test Test MX, SMTP/IMAP/POP3 ports and email DNS records. Mail Score Deliverability score from SPF, DKIM, DMARC, MX, PTR and DNSBLs. Optional message hygiene. SPF Flattening Pro: turn include chains into ip4/ip6 (does not write DNS). BIMI / MTA-STS / TLS-RPT BIMI logo (SVG Tiny PS + VMC PEM), MTA-STS policy and TLS-RPT rua. Three cards; a missing record does not mean a broken domain. Email Header Analysis Raw headers: From alignment, DKIM-Signature, Authentication-Results and Received hops. The signature is not cryptographically verified.

Location, ping, path

IP Geolocation IP location, ISP, ASN and coordinates. Ping Test ICMP ping: latency, TTL and packet loss. Traceroute Hop-by-hop path and optional MTR summary. Subnet Calculator IPv4/IPv6 CIDR, network, broadcast, wildcard and usable host range. ASN Lookup BGP and organisation data from ASN, IP or prefix. Port Scanner Is a TCP port open: 1–65535, 443, 22 or a custom port. Open, closed or timeout with latency.

TLS, headers, DNSBL

SSL Checker TLS certificate, SAN, expiry, chain and a custom port (443, 8443, 2083). Certificate Transparency Names seen in crt.sh CT logs (SAN and old alt names). No dictionary scan; not a live host. Web Security Test Score HTTP security headers (HSTS, CSP, XFO…). IP Blacklist Scan an IP across 60 DNSBL / RBL lists.

Hash, inode, VPS

Hash Generator Produce MD5, SHA-1, SHA-256, SHA-512 and bcrypt. INODE Calculator Inode capacity for ext4, XFS, ZFS and other filesystems. Server Sizing VPS/cloud suggestion from workload, mapped to OwnHost NVMe SKUs (MINI–ENTERPRISE).

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IPTOOL

DNS lookup, whois, SPF, ping and IP geolocation.

DNS

DNS Lookup
DNS History
Reverse DNS
DNS Propagation
DNS Health Check
DNSKEY Lookup
Recursive DNS
Whois Lookup

Email

SPF Checker
DMARC Checker
SPF Generator
DMARC Generator
MX Lookup
Email Sender Compliance Checker
Email Health Check
DMARC RUA / Inbox
Adaptive Blacklist
DKIM Checker
DKIM Generator
Mail Server Test
Mail Score
SPF Flattening
BIMI / MTA-STS / TLS-RPT
Email Header Analysis

IP & Network

IP Geolocation
Ping Test
Traceroute
Subnet Calculator
ASN Lookup
Port Scanner

Security

SSL Checker
Certificate Transparency
Web Security Test
IP Blacklist

Tools

Hash Generator
INODE Calculator
Server Sizing

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