DKIM Record Checker
Verify a domain's DKIM public-key DNS record by selector and domain. Displays key type, bit length, hash algorithms, service type and flags. Validates against RFC 6376.
Data handling: Google Public DNS receives the DKIM hostname assembled from the selector and domain.
About DKIM Record Checker
DKIM Record Checker provides a dedicated, focused workspace: Verify a domain's DKIM public-key DNS record by selector and domain. Displays key type, bit length, hash algorithms, service type and flags. Validates against RFC 6376. Using it is a three-step job: 1) Open DKIM Record Checker and review the inputs, units, and data-handling notice shown on its page, 2) Enter the information requested by this tool and adjust only the options that apply to your task, 3) Review the result and use the available copy, download, or reset controls. As part of the ProfitTool security suite, this tool is built for direct everyday use. Review any data-handling notice before submitting information.
DKIM Record Checker is a free, browser-based dkim record checker from ProfitTool. Verify a domain's DKIM public-key DNS record by selector and domain. Displays key type, bit length, hash algorithms, service type and flags. Validates against RFC 6376. Review any usage notes shown on this page before relying on its availability. Review the tool's data-handling notice before entering sensitive information; some features store settings locally or contact external services.
People who use DMARC Record Checker usually reach for this next: Passphrase Generator covers the other half of the workflow.
Technical Limitations & Boundary Conditions
- Results reflect the inputs and assumptions shown. Fees, taxes, rates, and personal circumstances can change the real-world outcome; verify important figures with the relevant provider or authority.
- Extreme values outside standard ranges may be constrained by device memory or numerical precision boundaries.
Key Terms Explained
- Entropy
- A measure of unpredictability in bits. Each extra bit doubles the guessing effort; 80+ bits is a sensible floor.
- Passphrase
- Several random words joined together — easier to type and remember than a short random string, and usually stronger.
- Hashing
- A one-way transform of data. Unlike encryption, it cannot be reversed.
- Credential stuffing
- Attackers replaying username/password pairs leaked from one site against many others.
Data Handling
Data handling depends on this tool's implementation. Read the Data handling notice above the tool before entering sensitive information. Some features run locally; others contact named providers or ProfitTool services. Site analytics, advertising, and embedded resources may also make separate requests.
Industry Best Practices
- Read the field labels, units, and instructions before using DKIM Record Checker.
- Keep a copy of important source material when the operation could change or transform it.
- Review the result before sharing or relying on it; check the page for available copy or download controls.
- Cross-check consequential results against an authoritative source; this tool does not replace professional advice.
- Review DKIM Record Checker's data-handling notice before entering sensitive information.
Common Mistakes to Avoid
Substituting characters and calling it strong
P@ssw0rd1 is on every cracking list. Randomness beats cleverness every time.
Storing generated secrets in notes apps
Use a real password manager with encryption at rest.
Reusing one strong password everywhere
One breach then exposes every account. Unique per site, always.
If you came here from the Passphrase Generator, keep DNS Lookup open in a second tab.
How to use DKIM Record Checker
- 1Open DKIM Record Checker and review the inputs, units, and data-handling notice shown on its page.
- 2Enter the information requested by this tool and adjust only the options that apply to your task.
- 3Review the result and use the available copy, download, or reset controls. Processing and storage behavior vary by tool.
Pairs naturally with the DNS Lookup — DMARC Record Checker is the usual next step.
Frequently Asked Questions
Is anything I enter into DKIM Record Checker sent over the internet?›
Do not enter a live password, key, or token unless you have checked the tool's data-handling notice and verified its behavior.
Do I need to install anything to use DKIM Record Checker?›
No installation, extension or account. Open the page and start — you can also add it to your home screen for one-tap access.
How strong should my output be?›
For anything valuable, aim for at least 16 characters with mixed classes, or a four-plus-word passphrase, and store it in a password manager.
Can I use DKIM Record Checker for commercial or client work?›
Yes. Output from this security tool is yours to use commercially, with no attribution requirement and no licence to buy.
Can I trust a browser-based dkim record checker?›
Read the Data handling notice above the tool to see whether inputs stay local or are sent to a provider.
What should I do if DKIM Record Checker gives an unexpected result?›
Re-check your input formatting first, then reload the page to clear any stale state. If it persists, send us the input through the suggestion form and we'll fix it.
Should I reuse results across accounts?›
Never. Generate a fresh value per account so a single breach cannot cascade into your other logins.
Are there related security tools I should use alongside it?›
Yes — the related-tools panel on this page links the utilities most people open right before or after DKIM Record Checker, so you can chain them into one workflow.
Is DKIM Record Checker free to use?›
Yes — DKIM Record Checker is completely free with no signup, watermark, trial or hidden paywall, however often you use it.
Why Use DKIM Record Checker on ProfitTool?
DKIM Record Checker sits inside ProfitTool's Security collection — 250+ tools for security-minded users, admins and privacy folks. Review this tool's inputs and data-handling notice before use.
DKIM Record Checker is part of ProfitTool's security collection for security-minded users, admins and privacy folks. Review its documented inputs, assumptions, and data handling to decide whether it fits your task.