VMware ESXi and vSphere Cluster Management
Certification Lookup and Validation
Learn how to verify a Geek University certification using the certificate number, interpret lookup results, and resolve entry errors.
What certification lookup does
Certification lookup is the process of checking whether a certificate number matches an issued certification record. The lookup service validates a certification by using the unique certificate number printed on the certificate.
A matching result confirms that the entered credential corresponds to a recorded certification. It does not, by itself, replace independent confirmation that the document belongs to the person presenting it.
Find the certificate number
Look at the bottom of the certificate. The certificate number is the unique identifier used for validation, and valid identifiers begin with the prefix 2233.
Use the complete identifier as displayed. Do not enter only the prefix or a shortened portion of the number.
Enter the number exactly as printed
Enter every digit in the same order and preserve the formatting shown on the certificate. Dashes are part of the identifier and must be included.
- Include the expected 2233 prefix.
- Enter all digits.
- Keep every dash in its displayed position.
- Do not add extra spaces.
- Do not change digit order or remove hyphens.
| Check | Expected condition |
|---|---|
| Location | Number is taken from the bottom of the certificate |
| Prefix | Number begins with 2233 |
| Completeness | All digits are entered |
| Formatting | Dashes are included exactly as displayed |
What a valid lookup returns
For a valid certificate number, the lookup returns certification details that can be compared with the physical or digital certificate.
| Returned field | What it identifies | What the verifier should compare |
|---|---|---|
| Certificate holder name | The individual associated with the certification record | Name shown on the presented certificate |
| Grade | The recorded certification result | Grade or result printed on the certificate |
| Certification date | The date recorded for the certification | Date shown on the certificate |
Interpret the validation status
Matching result
If the returned holder name, grade, and certification date match the presented certificate, the certificate number is recognized by the certification record. Compare each detail rather than relying only on the existence of a result.
No result or error
No result or an error may mean that the number was entered incorrectly, or that the credential record is unavailable or unrecognized. Check the entire identifier before drawing a conclusion.
Details do not match
If the lookup returns details that differ from the certificate, first check for a wrong certificate number, omitted digits, transposed digits, or incorrect dash placement. If the identifier is correct and the mismatch remains, treat the credential as unconfirmed.
Practical verification examples
Successful credential verification
- Obtain the certificate number from the bottom of the applicant's certificate.
- Enter the complete number, including all dashes.
- Review the returned holder name, grade, and certification date.
- Compare those details with the submitted certificate.
Formatting correction
- A user enters a number beginning with 2233 but receives no matching result.
- The user notices that the dashes were omitted.
- The user re-enters the full number exactly as printed, including dashes.
- If the identifier is valid, the lookup can then return the certification details.
Mismatch review
- A verifier receives lookup details that do not match the presented certificate.
- The verifier checks the digits and dash placement by referring to the original certificate.
- If the entry is accurate and the details still differ, the credential is not confirmed.
Troubleshooting
No certification result is returned
- Return to the bottom of the certificate and copy the complete identifier.
- Confirm that it begins with 2233.
- Check every digit against the certificate.
- Restore any omitted or incorrectly placed dashes.
- Submit the corrected number again.
You cannot locate the number
- Check the bottom portion of the certificate.
- Look for an identifier beginning with 2233.
- If the lower portion is missing or unreadable, request a clearer or complete copy.
Returned details do not match
- Verify that the correct certificate number was entered.
- Check for transposed digits and incorrect dash placement.
- Compare the holder name, grade, and certification date with the certificate.
- Treat the credential as unconfirmed if the mismatch remains after correcting the entry.
Key takeaway
To validate a Geek University certification, locate the full certificate number at the bottom of the certificate, confirm that it begins with 2233, and enter it exactly as printed with all dashes. Then compare the returned holder name, grade, and certification date with the presented certificate.