
MxToolBox
dmarcian
Dnsstuff
EasyDMARC
PowerDMARC
DNSChecker.org
DMARCLY
Free email deliverability scanner - checks SPF, DMARC, DKIM, MX, blacklists and domain/SSL expiry, explains every problem in plain English and generates the exact DNS record to fix it. Paid DMARC report monitoring for teams and MSPs.

MxToolBox
Dnsstuff
DNSChecker.org
domainschecker.top
HetrixTools
intoDNS
Mr.DNS
162 free online tools and 400+ tested guides for server admins: DNS, email, SSL, blacklist and network checks. No sign-up
Which is more popular?
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | dnsdoctor.dev | srvscripts.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from Ukraine · 1 - 9 employees · 2026 | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


Paste a domain and get an instant diagnosis of SPF, DMARC, DKIM, MX, DNS, blacklist and domain/SSL expiry. Every problem comes with a plain-English explanation and the exact copy-paste DNS record to fix it, generated by a validating engine rather than an AI guess. Free, no signup: Domain scanner...
srvScripts is a free toolkit for people who run servers. It has 162 online tools for DNS, email authentication (SPF, DKIM, DMARC), blacklists and IP reputation, SSL/TLS, network and IP calculations and VoIP, plus more than 400 step-by-step guides and 39 MIT-licensed scripts for cPanel,...
What each product offers, as listed by its team.


How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing DNSDoctor.dev and srvScripts.
DNSDoctor.dev's answer
The fix records are generated by a deterministic engine that validates them against the actual RFC grammar and the 10-lookup limit. The AI only writes the plain-English explanation; it never writes the record itself. Most tools either show you charts and leave the fix to you, or let a language model guess at DNS records, which fails silently when the guess is wrong. We also check things the DMARC-only tools skip: blacklists, reverse DNS, domain and SSL expiry.
srvScripts's answer:
It puts 162 free server-admin tools, 400+ tested guides and 39 open-source scripts in one place, with no sign-up. Many tools run entirely in your browser, so nothing you paste is uploaded, and each tool page says where its checks run. Every guide and script states how it was tested and on which versions, and every script shows a SHA-256 checksum plus clear backup and undo steps before you run it.
DNSDoctor.dev's answer
The free scan needs no signup and gives you the full picture in one page, with the exact record to paste for each problem. The paid side answers the question most report dashboards leave open: is it safe to move to p=reject yet? It reads your DMARC reports, tracks every sending source, and tells you when the evidence supports the next policy step. One flat plan, no per-message metering, no sales call.
srvScripts's answer:
Most DNS and email-check sites give you one lookup at a time and push you to sign up. srvScripts is free without an account and handles bulk work: up to 256 IPs or CIDR ranges against 33 blacklists at once, an SPF checker that follows the full include tree and counts lookups, and IPv4 and IPv6 subnet tools. When a check finds a problem, it links to a step-by-step fix guide written for cPanel, DirectAdmin, Linux or Windows Server, so you can go from "what's wrong" to "fixed" on one site.
DNSDoctor.dev's answer
Small business owners and IT folks whose email quietly lands in spam, sysadmins who want DMARC enforcement without reading XML, and MSPs managing email auth across many client domains. Also works for AI agents: there is a REST API and an MCP server, so you can run scans from your own tools.
srvScripts's answer:
Server administrators, hosting providers and web agencies who look after cPanel, DirectAdmin, Linux or Windows servers, plus developers and IT staff who need to fix email delivery, DNS, SSL or blacklist problems quickly.
DNSDoctor.dev's answer
Side project by a founder who manages domains for a few companies he supports. The pattern kept repeating: marketing signs up for some new tool, it starts sending as the domain, nobody added it to SPF, and mail disappears until a customer complains. Raw DMARC reports technically contain the answer, but nobody reads gzipped XML. So this became the tool: scan, get the exact record to fix, and monitoring that flags a new sender the day it appears.
srvScripts's answer:
srvScripts was started by a working server administrator who runs hosting servers for companies and agencies. The same checks and fixes came up again and again: mail going to spam, an IP on a blacklist, DNS not updating, SSL errors after a migration. The useful tools were scattered across many sites, often limited or behind sign-ups. srvScripts collects them in one free place and adds the tested guides and scripts that go with them.
DNSDoctor.dev's answer
Python does the heavy lifting, with the DMARC report pipeline built on proven open-source parsing libraries rather than being reinvented. The part that matters is architectural: record generation is plain deterministic code that validates against the RFC grammar, and the AI layer is only allowed to write explanations, never records.
srvScripts's answer:
WordPress and PHP on a LiteSpeed server with MariaDB; plain JavaScript for the in-browser tools; Bash and PowerShell for the scripts; and a self-hosted speech-to-text service for call-recording transcription.
Share your experience with using DNSDoctor.dev and srvScripts. For example, how are they different and which one is better?
When comparing DNSDoctor.dev and srvScripts, you can also consider the following products.

All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.
Compare MxToolBox to DNSDoctor.dev or srvScripts:

We're on a mission to spread DMARC across the globe to make email and the internet safer for all.
Compare dmarcian to DNSDoctor.dev or srvScripts:

DNSstuff offers DNS tools, Network tools, Email tools, DNS reporting and IP information gathering.
Compare Dnsstuff to DNSDoctor.dev or srvScripts:

Check DNS Propagation worldwide. DNS Checker provides name server propagation check instantly. Changed nameservers so do a DNS lookup and check if DNS and nameservers have propagated.
Compare DNSChecker.org to DNSDoctor.dev or srvScripts:


Free domain checker tools to check domain age, availability, expiry, DNS, traffic, rank, and more. All tools are completely free.
Compare domainschecker.top to DNSDoctor.dev or srvScripts: