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SSL and Domain Expiry Sweep: Renewal Dates for Many Domains

Check SSL certificate and domain registration expiry for one domain or a whole list: certificate issuer, valid from and to, days left, trusted or not, domain registration and expiry dates, registrar and nameservers. Flags what expires within your warning window. Registrant details are never returned.

x402: $0.005 per callMCP tool: domain_ssl_sweepApify Actor: $0.005 per event

Input

ParameterTypeDefaultDescription
domainstringOne domain, for example example.com. Use this or domains.
domainsarrayUp to 100 domains in one run (Apify Actor only). Each domain that returns a result is one billable result.
warnDaysinteger30Flag certificates and registrations that expire within this many days.
checksstring
both | ssl | domain		bothWhich checks to run for each domain.

* required

Source and freshness

Source and licence
Stated in every response (field source).
Last verified
2026-10-03 (hourly check against the live source)

Use it

HTTP (x402)

curl -i "https://api.ambolt.dev/v1/domain-ssl-sweep?domain=www.sitemaps.org&warnDays=30"

Returns 402 Payment Required with the price until an x402 payment is attached; @x402/fetch does this for you. See Get started.

MCP

{ "mcpServers": { "ambolt": { "url": "https://api.ambolt.dev/mcp" } } }
# then call the tool: domain_ssl_sweep

Apify

Run the Actor ($0.005 per domain, free trial credits for new accounts).

Example response

{
  "checked": 1,
  "readable": 1,
  "flagged": 0,
  "warnDays": 30,
  "billableResults": 1,
  "checkedAt": "2026-10-03T14:58:44.626Z",
  "note": "SSL data comes from the certificate the server presents; domain data from the registry RDAP service. Subdomains share their parent domain registration.",
  "results": [
    {
      "domain": "www.sitemaps.org",
      "ok": true,
      "ssl": {
        "subject": "www.sitemaps.org",
        "issuer": "Microsoft Corporation",
        "notBefore": "2026-08-29T12:16:28.000Z",
        "notAfter": "2026-12-07T11:16:28.000Z",
        "sans": [
          "www.sitemaps.org"
        ],
        "protocol": "TLSv1.3",
        "trusted": true,
        "trustError": null,
        "daysLeft": 64,
        "expired": false
      },
      "registration": {
        "registered": true,
        "registeredAt": "2001-08-12T23:51:55.459Z",
        "expiresAt": "2027-08-12T23:51:55Z",
        "daysToExpiry": 313,
        "registrar": "MarkMonitor Inc.",
        "nameservers": [
          "ns3-02.azure-dns.org",
          "ns1-02.azure-dns.com",
          "ns2-02.azure-dns.net",
          "ns4-02.azure-dns.info"
        ],
        "status": [
          "client delete prohibited",
          "client transfer prohibited",
          "client update prohibited"
        ]
      },
      "flags": []
    }
  ]
}

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