Из ленты dev.to devops — кратко, чтобы не потерять.
If you’ve ever had a spreadsheet of domains — a lead list, an acquisition target’s footprint, your own portfolio — and needed DNS records, WHOIS, SSL expiry, or email authentication for all of them, you know the pain: single-domain web tools don’t scale, and dig / whois / openssl loops are fiddly to parse. Here’s how I think about pulling clean, structured domain intelligence in bulk — and the three small tools I built so I never have to write that loop again. 1. DNS + WHOIS + SSL, in one pass For each domain you usually want three things together: DNS — A/AAAA/MX/NS/TXT/CNAME (where it points, who runs mail, the DNS provider) WHOIS — registrar, creation/expiry dates, status, name servers SSL — issuer, the valid_from / valid_to window, SAN list The trick is to do them as protocol calls (DN
Полный текст и контекст у первоисточника: https://dev.to/weiseer/bulk-check-dns-ssl-and-email-auth-for-a-whole-list-of-domains-no-scraping-37pd