Certificate Register
Use the search below to check the authenticity of a certificate issued by BSTQB.
Important notes:
- Names of candidates who did not authorize display appear as “NOT AUTHORIZED”.
- The certificate number is shown partially to prevent misuse.
If no results are found after entering the full certificate number or the full/partial name, or if you have any questions, contact secretaria@bstqb.org.br.

![]()
| Name | ID | Level | Certification | Date |
|---|---|---|---|---|
| Gustavo Costa de Oliveira | 21-CTFL-XXXXX-BR | CTFL | Foundation Level | 2021-07-10 |
| Gustavo Costa de Oliveira | 21-CTFL-AT-XXXXX-BR | CTFL-AT | Agile Tester | 2021-08-27 |
| Gustavo Costa De Oliveira | 26-CT-GenAI-XXXXX-BR | CT-GenAI | Certified Tester, Testing with Generative AI | 2026-02-09 |
| Gustavo Costa De Oliveira | 26-CTAL-TM-XXXXX-BR | CTAL-TM | Certified Tester Advanced Level, Test Manager | 2026-06-22 |
| Gustavo de Oliveira Gentil | 19-CTFL-XXXXX-BR | CTFL | Foundation Level | 2019-11-22 |
| Gustavo de Oliveira Govoni | 12-CTFL-XXXXX-BR | CTFL | Foundation Level | 2012-09-14 |
| Gustavo Franklin Maia Cosme Oliveira | 22-CTFL-XXXXX-BR | CTFL | Certified Tester Foundation Level | 07/10/2022 |
| Gustavo Henrique de Oliveira Cornelio | 23-CTAL-ATT-XXXXX-BR | CTAL-ATT | Certified Tester Advanced Level, Agile Technical Tester | 20/10/2023 |
| Gustavo Henrique de Oliveira Cornélio | 19-CTFL-XXXXX-BR | CTFL | Foundation Level | 2019-02-22 |
| Gustavo Henrique de Oliveira Cornélio | 19-CTFL-AT-XXXXX-BR | CTFL-AT | Agile Tester | 2019-08-23 |