Domain Checker: DNS & SSL
WHOIS, Email & Security Check
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
DomainName Inspector helps you monitor domain expiry, DNS records, HTTPS reachability, TLS handshakes, and mail security records in one focused, local-first iOS app.
Domain Checker: DNS & SSL
Domain Checker is a domain diagnostic tool designed for developers, website administrators, and network professionals. Quickly analyze domain infrastructure with DNS lookup, SSL certificate inspection, HTTP response analysis, WHOIS information, and email security checks.
Simply enter a domain name to get a clear overview of its DNS configuration, certificate status, website response, and related services.
Key Features:
• DNS Record Lookup
Inspect common DNS records, including:
A
AAAA
CNAME
MX
TXT
NS
SOA
CAA
Verify domain resolution, DNS configuration, and service availability quickly.
• SSL Certificate Inspection
Analyze HTTPS certificates and security information, including:
Certificate issuer
Validity period
Expiration countdown
Subject Alternative Names (SAN)
Fingerprint
Public key information
Identify certificate expiration risks and configuration issues before they impact your services.
• HTTP Response Analysis
Check website availability and HTTP behavior:
HTTP status codes
Response headers
Redirect chains
Server information
Quickly troubleshoot website accessibility and configuration problems.
• WHOIS Domain Information
View public domain registration information:
Registrar
Registration date
Expiration date
Domain status
Name servers
Understand domain ownership and lifecycle information.
• Email Security Check
Analyze domain email-related DNS configuration:
MX records
SPF records
DMARC records
Identify email security configuration issues and improve domain reliability.
• All-in-One Domain Diagnostics
Perform essential domain checks from one clean interface without switching between multiple websites or online tools.
Whether you are troubleshooting DNS resolution, verifying SSL certificates, diagnosing HTTP issues, or reviewing domain configuration, Domain Checker helps you quickly understand your domain infrastructure.
Legal:
Terms of Use:
https://domain.opshome.run/terms/
Apple Standard EULA:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/Privacy Policy:
https://domain.opshome.run/privacy/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
1. Improved domain connection and validation experience
2. Enhanced DNS, SSL certificate, and WHOIS detection
3. Improved email security checks
4. Added clearer status feedback and error handling
5. Improved overall stability and performance
The developer, 超 张, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 超 张
- Size
- 4.8 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Domain Inspector Plus 50 $3.99
- Domain Inspector Pro 100 $8.99
- Copyright
- © 2026 Zhang Chao