Zoho Toolkit: Extend and Customize Your Zoho Applications

Zoho Toolkit provides a set of tools and capabilities that allow businesses to customize, extend, and integrate Zoho applications. It enables advanced workflows, custom logic, and seamless connectivity across systems to fit specific business needs.
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All Developer Platform Apps at a Glance

Zoho Vertical Studio
Zoho IoT
Zoho Catalyst
Zoho MCP
Zoho Office Integrator
Zoho QEngine
Zoho RPA
Zoho Creator
Zoho Flow
Qntrl
Zoho Toolkit

Free Tools for Domain, IP and Email Diagnostics

Zoho Toolkit is a free collection of browser-based utilities for checking and troubleshooting the technical side of your domain and email setup. It covers domain and IP lookups, generators for things like email signatures and PGP keys, and analyzers that decode email headers, DMARC reports and more. Instead of juggling several separate tools from different providers, everything you need to diagnose a delivery, DNS or authentication issue lives in one place.

Key Features

Key Tools in Zoho Toolkit

Domain lookup

Check DNS records, WHOIS ownership data and overall email health for any domain in seconds. Instead of switching between separate lookup sites and cross-referencing results manually, you get a clear picture of a domain's setup in one search.
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Domain lookup
IP lookup

IP lookup

Run reverse lookups and port checks to confirm what's actually reachable behind an IP address. This is especially useful when tracking down a connectivity problem or checking whether a server has landed on a blacklist.

Generators

Create email signatures, PGP encryption keys, domain name ideas and encoded URLs in a few clicks. What would normally require design software or manual formatting turns into a task that takes a couple of minutes.
Generators
Email header analyzer

Email header analyzer

Decode raw email headers to trace exactly how a message travelled and where a delivery issue actually happened. Rather than reading dense technical text line by line, you get the routing and authentication details laid out clearly.

DMARC report analyzer

Turn raw, hard-to-read DMARC XML reports into a clear view of who's sending email on your domain's behalf. This makes it far easier to spot unauthorized senders and confirm your domain's authentication is actually working as intended.
DMARC report analyzer
EML & ICS viewer

EML & ICS viewer

Open and inspect raw email or calendar files directly in the browser, without needing the original application that created them. Useful for reviewing forwarded evidence, checking file integrity or simply viewing content when the right software isn't installed.
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Most Important Features of Zoho Toolkit

Who Is Zoho Toolkit For?

Zoho Toolkit helps anyone who needs to check or troubleshoot the technical side of a domain or email setup.

IT Administrators

IT Administrators

Diagnose DNS, connectivity or email delivery issues without pulling tools from a dozen different sites.
Email Deliverability Specialists

Email Deliverability Specialists

Decode headers and DMARC reports to understand exactly why messages aren't landing in the inbox.
Domain Owners

Domain Owners

Check WHOIS data, DNS records and domain health before making changes or registering something new.
Security Teams

Security Teams

Verify email authentication setup and spot spoofing risks tied to a domain's DMARC configuration.
Developers

Developers

Generate PGP keys, encode URLs and inspect raw email or calendar files during testing and debugging.
Marketing Teams

Marketing Teams

Create polished email signatures quickly, without needing design or technical support.
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Frequently Asked Questions About Zoho Toolkit

  • What is Zoho Toolkit?
    Zoho Toolkit is a free collection of browser-based utilities for checking and troubleshooting your domain, IP and email setup, covering everything from DNS lookups to email header analysis.
  • Do I need a Zoho account to use it?
    No, the tools in Zoho Toolkit are freely accessible in the browser, without requiring a Zoho subscription or account to run a lookup or analysis.
  • Can Zoho Toolkit help me troubleshoot email delivery issues?
    Yes, the email header analyzer and DMARC report analyzer are built specifically to trace why an email didn't arrive or how it was authenticated along the way.
  • How does codafish use tools like Zoho Toolkit?
    As your Zoho Premium Partner, codafish uses diagnostic tools like these to troubleshoot DNS, email authentication and deliverability issues as part of setting up and maintaining your Zoho environment.
Insights

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