Registered 10 years ago, on no blocklists we checked, valid HTTPS, the site answered 204 in 97 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 158.69.52.234 |
|---|---|
| AAAA | 2607:5300:60:81ef:: |
| NS | ns-1004.awsdns-61.net ns-481.awsdns-60.com ns-1881.awsdns-43.co.uk ns-1457.awsdns-54.org |
| TXT | google-site-verification=LKqOMf0AOXHIUqYvxx9bxiKTbUm3qpDbR5Z7AIVtIp4 yandex-verification: dd9a864c777b99aa google-site-verification=1-WtnamvKDriXXitlyHDFHp9KjVqq5jy29wz9AHzOL0 |
| registrar | Danesco Trading Ltd. |
|---|---|
| registered | 2017-03-08 |
| expires | 2030-05-28 |
| last changed | 2026-09-30 |
| nameservers | ns-1004.awsdns-61.net ns-1457.awsdns-54.org ns-1881.awsdns-43.co.uk ns-481.awsdns-60.com |
| status | active |
| valid | yes |
|---|---|
| issuer | Let's Encrypt |
| covers | *.tsyndicate.com, tsyndicate.com |
| protocol | TLSv1.3 |
Domain is not signed with DNSSEC
| SPF | none |
|---|---|
| DMARC | none |
| DKIM | none of 1 common selectors |
Whether mail claiming to be from this domain can be checked as genuine.
Green: clean. Red: listed. Grey: the list did not answer.
Agents get this as data. Bought through the API, the checks behind this page cost $0.070: profile $0.025 + trust $0.020 + screenshot $0.020 + site status $0.005.
MCP: add https://how.is/mcp to Claude, Codex or Cursor
(one-line install) and ask for domain_trust on tsyndicate.com.
Reference: /llms.txt.
Watch tsyndicate.com. DNS read at the source every 5 minutes; certificate, blocklists and expiry every 6 hours. You get an email only when something changes.
Watch — $1 / 30 days