On no blocklists we checked, valid HTTPS, the site answered 200 in 1898 ms.
Rule-based: domain age, blocklists, TLS. A heuristic, not a guarantee.

| A | 52.83.128.157 43.192.37.20 52.81.170.225 140.179.122.235 52.83.70.25 54.223.86.57 |
|---|---|
| MX | 10 mail.nwcdcloud.cn |
| NS | ns-intl-3287.awsdns-cn-13.cn ns-2419.awsdns-cn-23.biz ns-3287.awsdns-cn-13.cn ns-intl-630.awsdns-cn-39.com ns-630.awsdns-cn-39.com ns-1733.awsdns-cn-44.net |
| TXT | MS=ms46061738 spf2.0/pra ip4:52.83.214.130 ip4:52.83.103.181 ip4:52.83.99.146 ip4:69.231.146.73 ip4:43.192.5.4 include:amazon.com -all TS1760027 v=spf1 ip4:52.83.214.130 ip4:52.83.103.181 ip4:52.83.99.146 ip4:69.231.146.73 ip4:43.192.5.4 include:amazon.com -all |
| registrar | 厦门易名科技股份有限公司 |
|---|---|
| nameservers | ns-3287.awsdns-cn-13.cn ns-intl-3287.awsdns-cn-13.cn ns-2419.awsdns-cn-23.biz ns-1733.awsdns-cn-44.net ns-630.awsdns-cn-39.com ns-intl-630.awsdns-cn-39.com |
| status | serverDeleteProhibited serverUpdateProhibited clientTransferProhibited serverTransferProhibited |
| valid | yes |
|---|---|
| issuer | Amazon |
| covers | live.bjs.prod.content-server.marketing.aws.a2z.org.cn, amazonaws.com.cn, www.amazonwebservices.cn, www.amazonaws.com.cn, amazonaws.cn, amazonwebservices.cn, www.amazonaws.cn |
| protocol | TLSv1.3 |
Domain is not signed with DNSSEC
| SPF | pass v=spf1 ip4:52.83.214.130 ip4:52.83.103.181 ip4:52.83.99.146 ip4:69.231.146.73 ip4:43.192.5.4 include:amazon.com -all |
|---|---|
| DMARC | pass policy quarantine |
| 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 amazonaws.com.cn.
Reference: /llms.txt.
IPv6. Does amazonaws.com.cn work over IPv6? See the live check on aaaa.bot — website, mail and nameservers, graded A–F.
Watch amazonaws.com.cn. 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