The free Domain Health lookup is limited to one check every 24 hours.
Repeated checks or recurring monitoring require an upgrade.
Evidence source ↗
MXToolbox Domain Health & Lookup
MXToolbox Domain Health checks domain DNS, mail, web server, and blacklist status. Its web lookup is free with daily limits; paid plans add monitoring and API access.
Network Security
Editorial overview
Aggregated Overview
The product documents broad DNS, email, blacklist, and server checks, with a free web lookup and paid monitoring/API options. Scores are editorial assessments, not hands-on test results; review evidence covers MXToolbox generally.
This profile combines documented product information and independent evidence where available. It is not a hands-on test unless TechZella explicitly identifies one.
MXToolbox Domain Health & Lookup Decision Snapshot
A quick way to understand who this product may suit, where its limits matter, and which facts are most relevant before you compare alternatives.
Best suited to
Administrators and IT teams who need a single web report for domain DNS, mail-server, web-server, and blacklist checks.
Look elsewhere if
Teams seeking a web-scraping platform, a standalone website uptime product, or unrestricted recurring checks on the free tier.
Platforms
API, REST API, SaaS, Web
TechZella assessment
7.5/10
Overview
MXToolbox Domain Health produces a consolidated report covering a domain’s DNS, mail servers, web servers, and blacklist status. It discovers server hostnames through DNS and runs checks to identify configuration or availability issues.
The browser-based lookup is useful for point-in-time diagnosis. Users who need recurring checks can upgrade to monitoring, which checks web-server status every five minutes and runs DNS and mail checks repeatedly.
This is an infrastructure diagnostic tool, not a web-scraping product. It inspects domain and server configuration rather than collecting or extracting website content.
MXToolbox Domain Health & Lookup — What Sets It Apart?
These are the product-specific differences that may matter when deciding whether the software fits your workflow. They are based on documented evidence rather than a universal ranking.
- Combines DNS configuration, mail-server, web-server, and blacklist checks in one domain report.
- Paid monitoring checks the web server every five minutes and tests DNS and mail-server health.
5 key claims verifiedOur editorial team checked this profile against vendor documentation, product documentation, company information. Supported by 3 documented sources.
MXToolbox Domain Health & Lookup Pros & Cons
Pros
- Combines DNS, mail, web-server, and blacklist checks in one domain report.
- Free browser-based Domain Health checks are available.
- REST API supports automation of lookups and monitor operations.
Cons
- Free Domain Health checks are limited to one per 24 hours.
- Recurring monitoring requires an upgrade.
- The public Domain Health page does not show the upgraded monitoring price.
- The API reference publishes conflicting free DNS quota figures.
MXToolbox Domain Health & Lookup Gotchas & Operational Limits
These are documented constraints or practical friction points that may matter before you adopt the product.
The API reference states 68 free DNS requests in its quick-start section but lists 64 daily requests in its quota table.
Confirm the account's displayed quota before planning automated workloads.
Evidence source ↗Security & Privacy
For security-sensitive software, TechZella focuses on documented architecture, authentication, data handling, deployment and privacy details that can affect a buying decision. This is product research, not an independent security audit.
Security posture at a glance
| Deployment | Vendor-hosted web service |
|---|
Security claims are presented only when supported by documented sources. The presence of this section does not constitute a penetration test, certification or independent security audit.
MXToolbox Domain Health & Lookup Pricing & Plans
Free Domain Health lookup
$0
month
One Domain Health check every 24 hours for free users.
Check current pricing →Upgraded Domain Health monitoring
Upgrade enables unlimited Domain Health checks and a Domain Health Monitor. The Domain Health page does not list its price.
Check current pricing →API free access
$0
daily quota
Free API access includes limited requests. The API reference's quick-start and quota table state different free DNS request totals, so verify the account quota.
Check current pricing →Pricing may change. Verify current plans on the vendor's website.
MXToolbox Domain Health & Lookup Features
Domain diagnostics
- Consolidated DNS, mail-server, web-server, and blacklist report
- MX-record mail-server checks
- DNS server configuration checks
- Domain and IP blacklist checks
Monitoring
- Recurring DNS and mail-server checks
- Web-server status checks every five minutes
- Alerts when monitored server or DNS status changes
API
- REST API for DNS, email, blacklist, and network lookups
- Monitor status queries and monitor management
- HTTPS requests with JSON responses and API-key authentication
- Plan-based request quotas
Alternatives
Google Admin Toolbox Dig is a narrower option for web-based DNS record lookups. Its scope differs from MXToolbox Domain Health, which combines DNS, mail, web-server, and blacklist checks and offers paid monitoring.
Demo & Screenshots
MXToolbox Domain Health & Lookup Specifications
| Deployment | Vendor-hosted web service |
|---|---|
| API | REST API |
| API response format | JSON over HTTPS |
| Free Domain Health limit | One check every 24 hours |
| Web monitoring interval | Every five minutes |
| Free trial | Free Domain Health checks and limited free API access are available |
| Integrations | REST API supports customer-built connections; no named native integrations verified |
Deployment & System Footprint
Verified installation, hosting, administration, or environment details that can affect implementation.
| Installation or hosting | The Domain Health check is a browser-based service. The API is hosted at MXToolbox and uses HTTPS. Source ↗ |
|---|---|
| API | REST API with JSON responses; requests use an API key in the Authorization header. Source ↗ |
Our evidence-based assessment
TechZella Score
A proprietary editorial score based on product capabilities, usability, value, performance, support and user sentiment evidence.
7.5/10Moderate confidence
The product documents broad DNS, email, blacklist, and server checks, with a free web lookup and paid monitoring/API options. Scores are editorial assessments, not hands-on test results; review evidence covers MXToolbox generally.
Methodology v1.0. The assessment weighs feature coverage (25%), ease of use (15%), value for money (20%), performance (15%), support (10%) and user sentiment (15%), using researched product evidence and verified review evidence where available. It is a TechZella editorial assessment, not a direct user-review average.
Editorial transparency
Our Review Methodology
Key claims are linked to the sources used to verify them. This evidence record is separate from third-party user ratings.
TechZella evaluates software using documented product capabilities, pricing information, usability and value considerations, independent user evidence where available, and competitive context. The assessment is an editorial review, not a hands-on test unless one is explicitly identified. Our editorial assessment is based on 3 documented sources.
What TechZella adds
- Combines DNS configuration, mail-server, web-server, and blacklist checks in one domain report.
- Paid monitoring checks the web server every five minutes and tests DNS and mail-server health.
Important limitations
- Free users are limited to one Domain Health check every 24 hours.
- The public Domain Health page does not disclose the price of upgraded monitoring.
- API quotas vary by plan; the API reference's quick-start text and quota table show different free DNS request counts.
Evidence-backed claimsDomain Health assesses DNS, mail-server, web-server, and blacklist issues. The free Domain Health tier permits one check every 24 hours. Domain Health monitoring checks web-server status every five minutes. MXToolbox provides a REST API for DNS, blacklist, email, and network lookups. MXToolbox is based in Austin, Texas.
The product page describes a domain report based on DNS-discovered mail, web, and DNS servers, with checks across those areas.
View source ↗Verified 2026-10-08The Domain Health page states the daily limit for free users and says upgrades enable unlimited checks.
View source ↗Verified 2026-10-08The product page describes a five-minute web-server monitoring interval and alerts when status changes.
View source ↗Verified 2026-10-08The API reference documents lookup commands, API-key authentication, and JSON responses over HTTPS.
View source ↗Verified 2026-10-08The company About Us page lists its Austin street address.
View source ↗Verified 2026-10-08Community feedback
Reviews
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FAQ
Is MXToolbox Domain Health a web-scraping tool? No. It checks domain infrastructure and configuration; it does not extract website content.
Can I use it for free? Yes. The Domain Health page limits free users to one check every 24 hours.
Does it have an API? Yes. MXToolbox documents a REST API for lookups and monitor operations. Authenticated requests use an API key, and usage is subject to plan quotas.
Does Domain Health monitor a site continuously? Recurring monitoring is available as an upgraded service. The vendor says web-server status is checked every five minutes.
Are API integrations available? The vendor describes a REST API for connecting lookups and monitor operations to other systems. It does not document a named native integration in the sources reviewed.
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