During October 2025, Tobias Sachs updated the Chains of Trust documentation for the letsencrypt/website repository, focusing on enhancing certificate validation resources. He identified missing crt.sh links for Root YR and Root YE certificates and their intermediates, then integrated these references using Markdown to improve the documentation’s accuracy and relevance. Tobias also updated the last modified metadata to ensure users access the most current certificate information. His work centered on documentation skills and careful attention to detail, addressing the needs of users who rely on crt.sh for trust validation. The contribution was focused and improved the reliability of certificate chain documentation.