DNS Checker: IP & SSL Tools

Ports, WHOIS & Propagation

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Port Checker, common-port scan, Watch Domains, SSL reminders & worldwide DNS propagation. Fast DNS, WHOIS & SSL — Pro for ad-free + instant PDF. DNS Checker: look up DNS, WHOIS, SSL, IP location, ports & propagation — all in one simple app. Built for developers, sysadmins, site owners, gamers, and anyone troubleshooting domains or servers. DNS LOOKUP • A, AAAA, MX, TXT, NS, SOA, SRV & CAA records • TTL, priority and full record details • Copy any value with one tap • Save lookups to History and reopen anytime WHOIS & DOMAIN • Registrar, creation & expiry dates • Name servers and DNSSEC status • Domain availability check SSL CERTIFICATE • Issuer, subject and validity dates • Days until expiry • Signature algorithm & serial number IP & NETWORK • IP geolocation (city, country, ISP, ASN) • Reverse DNS (IP → hostname) • HTTP response headers PORT CHECKER • Check if a remote port is open or closed • Scan common ports from the internet (fast batch scan) • Common ports: HTTP, HTTPS, SSH, SMTP, MySQL, RDP, Minecraft & more • Port History for past checks • Useful for port forwarding and firewall testing WATCH DOMAINS • Save domains you care about • Detect DNS A-record changes • Quick status: OK, SSL warning, or DNS changed SSL EXPIRY REMINDERS • See which certificates expire soon • Optional local reminders before expiry DNS PROPAGATION • Compare A records across Google, Cloudflare & Quad9 • Clear result: “All servers agree” or “Still updating” PRO • Ad-free experience (no banners or pop-ups) • Instant PDF export of full DNS reports (All core tools are available free. Free users can export PDF by watching a short ad.) Perfect for: • Checking DNS after a domain or hosting change • Verifying SSL before a site goes live • Testing port forwarding (game servers, remote access) • Watching important domains for unexpected DNS changes No account required. Fast, clean, and designed for iPhone & iPad. Questions? contacttomujahid@gmail.com Privacy Policy: https://justclack.blogspot.com/p/privacy-policy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Subscriptions (optional): • Weekly, Monthly, or Yearly Premium • Payment charged to your Apple ID • Auto-renews unless cancelled at least 24 hours before the period ends • Manage or cancel in App Store account settings

Ratings & Reviews

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What’s new in this update • Port Checker — test if a host and port are open (SSH, HTTPS, Minecraft, RDP & more) • Scan Common Ports — check ~22 common ports from the internet in about 1–2 seconds • Port History — save and revisit past port checks & scans • Watch Domains — track DNS changes on domains you care about • SSL Expiry reminders — get notified before your certificate expires • DNS Propagation — see if your DNS change is live on Google, Cloudflare & Quad9 • Cleaner Pro benefits — ad-free experience + instant PDF export • Stability and performance improvements If DNS Checker helps you, a quick App Store review means a lot. Thank you!

Version 8.2

The developer, Muhammad Mujahid Khan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Muhammad Mujahid Khan
Size
  • 13.6 MB
Category
  • Utilities
Compatibility
Requires iOS 17.6 or later.
  • iPhone
    Requires iOS 17.6 or later.
  • iPad
    Requires iPadOS 17.6 or later.
  • Mac
    Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.3 or later.
Languages
English and 18 more
  • English, Arabic, Danish, Dutch, Finnish, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Norwegian Bokmål, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Turkish
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © DNS Checker: IP & SSL Tools
  • Developer Website
  • Privacy Policy

    • More by Muhammad Mujahid Khan

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