If you've ever had to jump between MXToolbox, dnschecker.org, SSL Labs, a terminal running nslookup, and a dozen other tools just to check a single domain, you know exactly how much time it wastes. dnsxray.com is the answer — it brings all of those tools together in one place. Built by the Injan Network team, it's completely free with no signup required, and it works in both Thai and English.
This article walks through what dnsxray.com offers, how professionals actually use it day to day, and what sets it apart from the other domain-checking tools on the market.
What is dnsxray.com
dnsxray.com is a domain health and diagnostics platform built for website owners, developers, and system administrators who need to check a domain's technical configuration quickly and thoroughly — without juggling several separate tools at once.
What keeps people coming back is that it returns real-time results straight from the domain's authoritative nameserver, not cached data that may be hours old. That means what you see is what's actually live on the internet at that exact moment.
Try it now: open dnsxray.com and type your domain into the Domain Health Check box — it summarizes DNS, email, SSL, and WHOIS in a matter of seconds.
Tools available on dnsxray.com
As of 2026, dnsxray.com bundles more than 15 tools that cover every angle of domain maintenance, from raw DNS records all the way through to security and email deliverability.
Domain Health Check
An all-in-one health check that shows DNS, mail server, SSL, and WHOIS on a single screen, with a PDF export option.
DNS Lookup
Look up every record type (A, AAAA, CNAME, MX, NS, TXT, SOA) plus SPF, DKIM, and DNSSEC verification.
WHOIS Lookup
View registration details, expiry date, registrar, and domain lock status instantly.
SSL Checker
Check the SSL certificate actually installed, its expiry date, whether the chain is complete, and which protocols are supported.
Mail Test
Analyze MX, SPF, DKIM, and DMARC, and calculate an Email Spoofing Score that flags how easily the domain could be spoofed for phishing.
Security Headers
Check whether HTTP security headers (CSP, HSTS, X-Frame-Options, etc.) are set correctly and completely.
Redirect Checker
Follow the full redirect chain step by step and spot loops or broken redirects immediately.
Technology Detector
Detect the CMS, web server, framework, CDN, and JavaScript libraries a site is running.
IP / GeoIP Lookup
Look up location, ISP, and ASN for an IP address using a database processed directly on Thai servers — no third party in between.
Uptime Monitor
Check whether a site is online or offline and measure response time from multiple locations.
Robots.txt Checker
Read and analyze a site's robots.txt to confirm it allows or blocks crawlers exactly as intended.
IPv6 Checker
Check whether a domain has an AAAA record for IPv6 support — useful for getting ready for future traffic.
What makes dnsxray.com stand out
1. Real-time results — not stale cache
Most DNS lookup tools query through a recursive resolver that can cache results for hours, so you end up seeing an old value instead of what you just changed. dnsxray.com has a Fresh Check button that queries the domain's authoritative nameserver directly, bypassing every layer of cache — what you see is exactly what's being served right now. That's invaluable right after a DNS change, when you need to confirm it has actually propagated.
2. A mail security score that's easy to read
One of the most impressive features is the Email Spoofing Score in Mail Test. It assesses how likely the domain is to be spoofed for phishing emails by checking how complete the SPF, DKIM, and DMARC setup is, then shows the result as a simple, readable score — not just a "present" or "missing" flag, but whether what's configured is actually sufficient.
3. PDF reports for client-facing work
Hosting providers, web agencies, and IT consultants can run a client's domain health check and export the results as a PDF to attach to a report or proposal right away — much faster than screenshotting several separate tools.
4. A REST API for developers
dnsxray.com exposes a REST API for calling its tools directly — DNS lookup, SSL check, GeoIP, redirect check, and more, across 12+ endpoints — so you can integrate it into automation scripts, monitoring dashboards, or CI/CD pipelines without relying on any external service.
Sample API calls:
GET https://dnsxray.com/v1/dns?domain=example.com&type=MX
GET https://dnsxray.com/v1/ssl?domain=example.com
GET https://dnsxray.com/v1/geoip?ip=1.1.1.15. GeoIP data processed inside Thailand
Most GeoIP tools are notoriously inaccurate for Thai IP ranges because they rely on foreign databases. dnsxray.com uses a local GeoIP database that's updated monthly, so ISP, ASN, and location data for Thai IP addresses is noticeably more accurate than what generic global services return.
6. Free to use — no signup, no aggressive rate limits
There's no account to create, no credit card to enter, and no paywall blocking the core features. Open the browser and start using it right away — great for both a one-off check and daily use by developers or system administrators.
When you should reach for dnsxray.com
| Situation | Recommended tool |
|---|---|
| Monthly domain health check | Domain Health Check (see 4 areas at once) |
| Migrating hosting — confirming DNS has propagated | DNS Lookup + Fresh Check |
| Email landing in spam — tracking down the cause | Mail Test (SPF/DKIM/DMARC Score) |
| Checking SSL before it expires | SSL Checker |
| A client reports the site redirecting incorrectly | Redirect Checker |
| Checking Security Headers before a deploy | Security Headers |
| Curious what tech stack a site is running | Technology Detector |
| Need the IP location of a Thai server | IP / GeoIP Lookup |
Who should be using dnsxray.com
- Regular website owners — run a monthly domain health check to catch problems before customers do
- Web developers and DevOps engineers — use the API to plug it into a workflow or monitoring script
- Web agencies and freelancers — check a client's domain and export a PDF report in one click
- Hosting providers — use it as a diagnostics tool to confirm a migration or troubleshoot an issue
- IT administrators — check email security and security headers before going live
- SEO specialists — check DNS records, redirect chains, and robots.txt that could affect crawl budget
How it compares to other tools
| Feature | dnsxray.com | MXToolbox | SSL Labs | dnschecker.org |
|---|---|---|---|---|
| All-in-one domain health | ✅ | Partial | ❌ | ❌ |
| Real-time DNS (authoritative) | ✅ | ✅ | ❌ | ✅ |
| SSL chain analysis | ✅ | Partial | ✅ (more detailed) | ❌ |
| Email spoofing score | ✅ | ✅ | ❌ | ❌ |
| Security headers | ✅ | ❌ | ❌ | ❌ |
| Technology detector | ✅ | ❌ | ❌ | ❌ |
| PDF export | ✅ | ❌ (paid) | ❌ | ❌ |
| REST API | ✅ | ✅ (paid) | ✅ | ❌ |
| Thai GeoIP accuracy | ✅ | ❌ | ❌ | ❌ |
| Entirely free | ✅ | Partial | ✅ | ✅ |
The comparison above shows dnsxray.com is the most complete tool in its class, especially for users in Thailand who want to do everything in one place. SSL Labs remains the better choice for a deep, protocol-level SSL audit specifically.
How to get started with dnsxray.com
- Open your browser and go to dnsxray.com
- Type the domain you want to check into the Domain Health Check box and press Enter
- Wait 5–10 seconds while it pulls data directly from the nameserver
- Review the summary for each category — DNS, email, SSL, WHOIS
- Click into a specific tool (e.g. Mail Test or SSL Checker) for more detail
- If you need the freshest result right after a DNS change, hit Fresh Check to query the authoritative nameserver directly
- Export the results as a PDF from the button in Domain Health Check
Frequently asked questions
Q: Is dnsxray.com really free? Are there hidden costs?
Yes, it's genuinely free — there's no paid plan locking away the core features. All the tools, including the basic API, can be used without creating an account or entering any credit card details.
Q: How reliable are the results from dnsxray.com?
It queries the domain's authoritative nameserver directly, so the DNS data is a true source of truth rather than a cache held by Google or an ISP. SSL, WHOIS, and Security Headers are likewise checked directly against the destination server.
Q: How is dnsxray.com different from the Domain Health Check on AsiaGB?
AsiaGB offers DNS Lookup, WHOIS, and SSL Checker tools to help customers verify the basics. dnsxray.com covers a much wider scope — Mail Test, Security Headers, Technology Detector, an API, and PDF export, all aimed at professional use. The two work well together.
Q: Is the dnsxray.com API easy to use? Do I need an API key?
For basic use you can call the endpoints directly without an API key. Full documentation is available at dnsxray.com/api-docs
Q: Does it only check .com domains, or does it support Thai domains too?
It supports every TLD, including .th, .co.th, .in.th, .net.th, and IDN (Thai-language) domains via automatic Punycode conversion.
Q: Do I need to install anything to use dnsxray.com?
No — it runs entirely in the browser. There's nothing to install and no software to maintain; you just open the site and start checking domains.
Bottom line: dnsxray.com is the most complete domain-checking tool available for the Thai market — DNS Lookup, WHOIS, SSL, Mail Test, Security Headers, Redirect Checker, GeoIP, and more, all in one place. It's free, returns real-time results, and offers an API for developers. Try it yourself at dnsxray.com
Hosting that's configured correctly from day one
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