The senris.com server supports sending domain authentication technologies "DKIM" and "DMARC" to prevent unauthorized spam email sending (spoofing, etc.)

Core Server has started supporting email authentication technologies DKIM and DMARC on all servers from February 1, 2024. This enhancement enables the use of SPF, DKIM, and DMARC on senris.com servers, reducing the risk of false spam detections and spoofed junk emails. This update also aligns with recent guideline changes from Google and Yahoo!

【SEO Measures】 Google search optimization (transition from breadcrumbs data-vocabulary.org to structured data JSON-LD+schema.org, favicon changes)

A good way to address google's recommended structured data JSON-LD+schema.org is to learn more about how to migrate to the "Breadcrumbs > data-vocabulary.org schema support is no longer available."