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Tools

Free Online Tools

What is inside

A set of free online tools for working with domains, websites, email and networks. No registration — enter your data and get the result instantly.

Network tools

DNS Records (dig) Check A, AAAA, MX, NS, TXT, CNAME, SOA DNS records of any domain online. → WHOIS / RDAP Lookup Find the registrar, registration and expiry dates, statuses and name servers of a domain. → Website Hosting Lookup Find out which hosting provider and country any website is hosted on. → Website Response Time Measure server response speed: DNS time, connection and time to first byte (TTFB). → Redirect Checker See the full chain of 301, 302 redirects from the entered address to the final page. →

IP address

My IP Your current IP address, internet provider and approximate location. → IP Address Info Find the country, city, provider, ASN and organization behind any IP address. → IP Calculator Calculate subnets, masks, address ranges and broadcast from CIDR notation. →

SSL certificate

SSL Certificate Check Check the issuer, validity period, SAN domains and days left until SSL expiration. →

Websites

Security Headers Check Check whether the site has security headers configured: HSTS, CSP, X-Frame-Options and others. → Meta Tags & Open Graph See the title, description, canonical and OG tags of any page — how Google and social networks see it. →

Email

SPF Record Check Find and check the domain SPF record — protection of your email against sender spoofing. → DMARC Check Check the domain DMARC policy: how to handle emails that failed SPF and DKIM. → DKIM Lookup Check the domain DKIM key by selector — the digital signature of your email. → IP Blacklist Check Find out if an IP is in spam databases Spamhaus, SpamCop, Barracuda and SORBS. → SPF Record Generator Create a correct SPF record for your domain: specify allowed IPs and services. → DMARC Generator Generate a DMARC policy for your needs: protection level, reporting address. →

Utilities

Password Generator Create strong random passwords with a choice of length, uppercase and lowercase letters, digits and symbols. → QR Code Generator Create a QR code for a link, text, Wi-Fi or business card and download it as PNG. → Punycode Converter Encode and decode IDN domains: convert Cyrillic and national characters to Punycode (xn--) and back. → Transliteration Ukrainian Latin script by the official Cabinet of Ministers standard — for documents, URLs and passports. → Cron Decoder Enter a cron expression and get a human-readable description of the task schedule. → .htpasswd Generator Create a login-password line for Apache HTTP Basic authentication (.htpasswd). →
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