Pricing

$3.00 / 1,000 domain profiles

Try for free

Go to Apify Store

Bulk DNS, SPF, DMARC & SSL Checker + Tech Stack

Try for free

Check SPF, DMARC, DKIM, MX, DNS records, SSL certificate expiry, mail provider and website tech stack for a list of domains. One JSON row per domain, ready for lead qualification, email deliverability audits and cert monitoring. $3 per 1,000 domains, unresolvable domains free.

Pricing

$3.00 / 1,000 domain profiles

Rating

0.0

(0)

Developer

SIPKI LLC

Actor stats

Bookmarked

Total users

Monthly active users

8 days ago

Last modified

Categories

Developer tools

Lead generation

You can access the Bulk DNS, SPF, DMARC & SSL Checker + Tech Stack programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in API & Integrations in Apify Console.

Python

JavaScript

CLI

OpenAPI

HTTP

MCP

{
  "openapi": "3.0.1",
  "info": {
    "version": "0.1",
    "x-build-id": "U6vgtlGyhmby7abjg"
  },
  "servers": [
    {
      "url": "https://api.apify.com/v2"
    }
  ],
  "paths": {
    "/acts/sipki~domain-passport/run-sync-get-dataset-items": {
      "post": {
        "operationId": "run-sync-get-dataset-items-sipki-domain-passport",
        "x-openai-isConsequential": false,
        "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.",
        "tags": [
          "Run Actor"
        ],
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": {
                "$ref": "#/components/schemas/inputSchema"
              }
            }
          }
        },
        "parameters": [
          {
            "name": "token",
            "in": "query",
            "required": true,
            "schema": {
              "type": "string"
            },
            "description": "Enter your Apify token here"
          }
        ],
        "responses": {
          "200": {
            "description": "OK"
          }
        }
      }
    },
    "/acts/sipki~domain-passport/runs": {
      "post": {
        "operationId": "runs-sync-sipki-domain-passport",
        "x-openai-isConsequential": false,
        "summary": "Executes an Actor and returns information about the initiated run in response.",
        "tags": [
          "Run Actor"
        ],
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": {
                "$ref": "#/components/schemas/inputSchema"
              }
            }
          }
        },
        "parameters": [
          {
            "name": "token",
            "in": "query",
            "required": true,
            "schema": {
              "type": "string"
            },
            "description": "Enter your Apify token here"
          }
        ],
        "responses": {
          "200": {
            "description": "OK",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/runsResponseSchema"
                }
              }
            }
          }
        }
      }
    },
    "/acts/sipki~domain-passport/run-sync": {
      "post": {
        "operationId": "run-sync-sipki-domain-passport",
        "x-openai-isConsequential": false,
        "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.",
        "tags": [
          "Run Actor"
        ],
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": {
                "$ref": "#/components/schemas/inputSchema"
              }
            }
          }
        },
        "parameters": [
          {
            "name": "token",
            "in": "query",
            "required": true,
            "schema": {
              "type": "string"
            },
            "description": "Enter your Apify token here"
          }
        ],
        "responses": {
          "200": {
            "description": "OK"
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "inputSchema": {
        "type": "object",
        "required": [
          "domains"
        ],
        "properties": {
          "domains": {
            "title": "Domains",
            "type": "array",
            "description": "One per line: mycompany.org or a URL (https://www.mycompany.org/page - only the host is used). Up to 5000.",
            "items": {
              "type": "string"
            }
          },
          "fetchHomepage": {
            "title": "Fetch home page (tech stack + headers)",
            "type": "boolean",
            "description": "One GET of the home page (plus robots.txt). If robots.txt disallows it, the page is NOT fetched and the record says so. Turn off for DNS/TLS only.",
            "default": true
          },
          "checkDkim": {
            "title": "Probe common DKIM selectors",
            "type": "boolean",
            "description": "Looks up TXT records for ~20 common selectors (google, selector1, k1, s1, ...). DKIM selectors are not enumerable, so 'none found' does not mean 'no DKIM'.",
            "default": true
          },
          "includeAllHeaders": {
            "title": "Return all response headers",
            "type": "boolean",
            "description": "Default returns a curated subset (server, security headers, cache, CDN hints). Cookie values are never returned, only names.",
            "default": false
          },
          "maxDomains": {
            "title": "Max domains",
            "minimum": 1,
            "maximum": 5000,
            "type": "integer",
            "description": "Hard cap for the run (also caps your cost).",
            "default": 5000
          }
        }
      },
      "runsResponseSchema": {
        "type": "object",
        "properties": {
          "data": {
            "type": "object",
            "properties": {
              "id": {
                "type": "string"
              },
              "actId": {
                "type": "string"
              },
              "userId": {
                "type": "string"
              },
              "startedAt": {
                "type": "string",
                "format": "date-time",
                "example": "2025-01-08T00:00:00.000Z"
              },
              "finishedAt": {
                "type": "string",
                "format": "date-time",
                "example": "2025-01-08T00:00:00.000Z"
              },
              "status": {
                "type": "string",
                "example": "READY"
              },
              "meta": {
                "type": "object",
                "properties": {
                  "origin": {
                    "type": "string",
                    "example": "API"
                  },
                  "userAgent": {
                    "type": "string"
                  }
                }
              },
              "stats": {
                "type": "object",
                "properties": {
                  "inputBodyLen": {
                    "type": "integer",
                    "example": 2000
                  },
                  "rebootCount": {
                    "type": "integer",
                    "example": 0
                  },
                  "restartCount": {
                    "type": "integer",
                    "example": 0
                  },
                  "resurrectCount": {
                    "type": "integer",
                    "example": 0
                  },
                  "computeUnits": {
                    "type": "integer",
                    "example": 0
                  }
                }
              },
              "options": {
                "type": "object",
                "properties": {
                  "build": {
                    "type": "string",
                    "example": "latest"
                  },
                  "timeoutSecs": {
                    "type": "integer",
                    "example": 300
                  },
                  "memoryMbytes": {
                    "type": "integer",
                    "example": 1024
                  },
                  "diskMbytes": {
                    "type": "integer",
                    "example": 2048
                  }
                }
              },
              "buildId": {
                "type": "string"
              },
              "defaultKeyValueStoreId": {
                "type": "string"
              },
              "defaultDatasetId": {
                "type": "string"
              },
              "defaultRequestQueueId": {
                "type": "string"
              },
              "buildNumber": {
                "type": "string",
                "example": "1.0.0"
              },
              "containerUrl": {
                "type": "string"
              },
              "usage": {
                "type": "object",
                "properties": {
                  "ACTOR_COMPUTE_UNITS": {
                    "type": "integer",
                    "example": 0
                  },
                  "DATASET_READS": {
                    "type": "integer",
                    "example": 0
                  },
                  "DATASET_WRITES": {
                    "type": "integer",
                    "example": 0
                  },
                  "KEY_VALUE_STORE_READS": {
                    "type": "integer",
                    "example": 0
                  },
                  "KEY_VALUE_STORE_WRITES": {
                    "type": "integer",
                    "example": 1
                  },
                  "KEY_VALUE_STORE_LISTS": {
                    "type": "integer",
                    "example": 0
                  },
                  "REQUEST_QUEUE_READS": {
                    "type": "integer",
                    "example": 0
                  },
                  "REQUEST_QUEUE_WRITES": {
                    "type": "integer",
                    "example": 0
                  },
                  "DATA_TRANSFER_INTERNAL_GBYTES": {
                    "type": "integer",
                    "example": 0
                  },
                  "DATA_TRANSFER_EXTERNAL_GBYTES": {
                    "type": "integer",
                    "example": 0
                  },
                  "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                    "type": "integer",
                    "example": 0
                  },
                  "PROXY_SERPS": {
                    "type": "integer",
                    "example": 0
                  },
                  "PROXY_UNBLOCKER_UNITS": {
                    "type": "integer",
                    "example": 0
                  }
                }
              },
              "usageTotalUsd": {
                "type": "number",
                "example": 0.00005
              },
              "usageUsd": {
                "type": "object",
                "properties": {
                  "ACTOR_COMPUTE_UNITS": {
                    "type": "integer",
                    "example": 0
                  },
                  "DATASET_READS": {
                    "type": "integer",
                    "example": 0
                  },
                  "DATASET_WRITES": {
                    "type": "integer",
                    "example": 0
                  },
                  "KEY_VALUE_STORE_READS": {
                    "type": "integer",
                    "example": 0
                  },
                  "KEY_VALUE_STORE_WRITES": {
                    "type": "number",
                    "example": 0.00005
                  },
                  "KEY_VALUE_STORE_LISTS": {
                    "type": "integer",
                    "example": 0
                  },
                  "REQUEST_QUEUE_READS": {
                    "type": "integer",
                    "example": 0
                  },
                  "REQUEST_QUEUE_WRITES": {
                    "type": "integer",
                    "example": 0
                  },
                  "DATA_TRANSFER_INTERNAL_GBYTES": {
                    "type": "integer",
                    "example": 0
                  },
                  "DATA_TRANSFER_EXTERNAL_GBYTES": {
                    "type": "integer",
                    "example": 0
                  },
                  "PROXY_RESIDENTIAL_TRANSFER_GBYTES": {
                    "type": "integer",
                    "example": 0
                  },
                  "PROXY_SERPS": {
                    "type": "integer",
                    "example": 0
                  },
                  "PROXY_UNBLOCKER_UNITS": {
                    "type": "integer",
                    "example": 0
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}

Bulk SPF, DMARC & DNS Lookup - Email Security & SSL Checker OpenAPI definition

OpenAPI is a standard for designing and describing RESTful APIs, allowing developers to define API structure, endpoints, and data formats in a machine-readable way. It simplifies API development, integration, and documentation.

OpenAPI is effective when used with AI agents and GPTs by standardizing how these systems interact with various APIs, for reliable integrations and efficient communication.

By defining machine-readable API specifications, OpenAPI allows AI models like GPTs to understand and use varied data sources, improving accuracy. This accelerates development, reduces errors, and provides context-aware responses, making OpenAPI a core component for AI applications.

You can download the OpenAPI definitions for Bulk DNS, SPF, DMARC & SSL Checker + Tech Stack from the options below:

OpenAPI.json

If you’d like to learn more about how OpenAPI powers GPTs, read our blog post.

You can also check out our other API clients:

Bulk DNS, SPF, DMARC & SSL Checker + Tech Stack API in Python

Bulk DNS, SPF, DMARC & SSL Checker + Tech Stack API in JavaScript

Bulk DNS, SPF, DMARC & SSL Checker + Tech Stack API through CLI

Bulk DNS, SPF, DMARC & SSL Checker + Tech Stack API

Bulk Domain Checker: WHOIS Lookup, DNS, SSL & HTTP

aiqlabs/bulk-domain-checker

Check a list of domains in one run: DNS records, mail provider from MX, SPF/DMARC, HTTP status and full redirect chain, SSL certificate expiry, and WHOIS/RDAP registration - plus a plain-English issue list per domain. No API keys.

Ai-Q Labs

Domain Security Checker: DNS, SPF/DMARC, TLS, Headers, Tech

ai_solution/website-domain-snapshot

One call, one JSON per domain: DNS records, SPF/DKIM/DMARC email-auth grade, TLS certificate, security-header score, detected tech stack and a prioritised findings list. Ideal for agencies, security checks and AI agents.

MB AISolution

SPF, DMARC & DKIM Checker: Bulk Email Domain DNS Audit

datawright-labs/email-domain-dns-checker

Bulk email authentication audit for any list of domains or emails: SPF (with recursive 10-lookup count), DMARC policy, DKIM selectors, MX and mail provider, BIMI, MTA-STS and TLS-RPT. Score 0-100, status and a plain-English problems list per domain.

Datawright Labs

Domain Health Checker

zinin/domain-health-checker

Audit DNS resolution, MX, SPF, DMARC, name servers, and TLS for a list of domains. Complete evidence cards include a 0–100 score, source states, issues, confidence, data gaps, and a next action. Incomplete or unsafe destinations remain unscored and are not billed as results.

Tim Zinin

5.0

(1)

Bulk Domain DNS & RDAP Lookup – SPF, DMARC, MX, Registrar

polychrome_haymow/domain-dns-rdap

Enrich up to 10,000 domains per run: A/AAAA/MX/NS/TXT, SPF & DMARC via DNS-over-HTTPS, plus registrar, created/expiry dates, status and DNSSEC via RDAP. No WHOIS, no personal data.

Levani Zurabiani

Domain Intelligence: WHOIS/RDAP, DNS, SSL, Tech

pushbuild/domain-intelligence

For any list of domains: registrar, creation and expiry dates, nameservers (RDAP/WHOIS), A/MX/SPF/DMARC records, email provider, SSL certificate issuer and expiry, HTTP status and detected technologies (Shopify, WordPress, HubSpot, Stripe…).

Pushbuild Data

Shopify Store Auditor: SEO & Product Catalog Audit

siftwright_data/shopify-store-auditor

Audit any Shopify store's catalog: thin or missing descriptions, images without alt text, duplicate titles, zero prices, missing product types and tags. 0-100 score per store plus every flagged product. No login or app needed.

Siftwright Data

SSL Certificate Checker: Bulk Expiry & Domain Expiry Monitor

datawright-labs/ssl-certificate-checker

Check SSL/TLS certificates for thousands of domains at once: days until expiry, issuer, SANs, chain, trust and hostname errors, TLS version and cipher, plus domain registration expiry via RDAP. Flags expired, expiring and invalid certs.

Datawright Labs

Domain Health Audit: SSL Expiry, SPF, DMARC, DNS

divinxxii/domain-health-audit

One row per domain: SSL certificate expiry and issuer, SPF, DMARC, DKIM, MX, DNS, HTTPS redirect and HSTS, with a 0-100 score and plain-English fix hints. Direct DNS and TLS checks, no WHOIS, no crawling.

James Brown

Email Domain Setup Checker (MX, SPF, DMARC, DKIM)

velveteen_driver/domain-email-check

Check the email setup of many domains from public DNS: email provider (from MX), SPF, DMARC policy, DKIM, BIMI and the sending services allowed by SPF. For deliverability checks and email security reviews. DNS only, no SMTP probing.

Elliott