DNS Resolver Comparison

const domscanFetch = (url, options = {}) =>
  fetch(url, {
    ...options,
    headers: { ...options.headers, "X-API-Key": "your-api-key" },
  });

const url = new URL("https://domscan.net/v1/dns/propagation");
url.searchParams.set("domain", "example.com");
url.searchParams.set("type", "A");
url.searchParams.set("expected", "203.0.113.42");

const response = await domscanFetch(url);
const data = await response.json();

// Legacy response field names are retained for API compatibility.
console.log(`Resolver convergence: ${data.propagation_percentage}%`);
console.log(`All configured resolvers match: ${data.fully_propagated}`);

// Check which servers are still showing old values
data.results
  .filter(r => !r.success || !r.records.includes(data.expected_value))
  .forEach(r => console.log(`${r.server.name}: ${r.records}`));

import requests

domscan = requests.Session()
domscan.headers.update({"X-API-Key": "your-api-key"})

response = domscan.get(
    "https://domscan.net/v1/dns/propagation",
    params={"domain": "example.com", "type": "A"}
)
data = response.json()

# Legacy response field names are retained for API compatibility.
print(f"Resolver convergence: {data['propagation_percentage']}%")
print(f"All configured resolvers match: {data['fully_propagated']}")

# Show servers with different values
for result in data['results']:
    print(f"{result['server']['name']}: {result['records']}")

package main

import (
  "encoding/json"
  "fmt"
  "net/http"
  "os"
)

func domscanGet(url string) (*http.Response, error) {
  request, err := http.NewRequest(http.MethodGet, url, nil)
  if err != nil {
    return nil, err
  }
  request.Header.Set("X-API-Key", os.Getenv("DOMSCAN_API_KEY"))
  return http.DefaultClient.Do(request)
}

func main() {
  resp, _ := domscanGet("https://domscan.net/v1/dns/propagation?domain=example.com&type=A")
  defer resp.Body.Close()

  var data map[string]interface{}
  json.NewDecoder(resp.Body).Decode(&data)

  // Legacy response field names are retained for API compatibility.
  fmt.Printf("Resolver convergence: %.0f%%\n", data["propagation_percentage"])
  fmt.Printf("All configured resolvers match: %v\n", data["fully_propagated"])
}

require 'net/http'
require 'json'

uri = URI("https://domscan.net/v1/dns/propagation?domain=example.com&type=A")
request = Net::HTTP::Get.new(uri)
request["X-API-Key"] = ENV.fetch("DOMSCAN_API_KEY")
response = Net::HTTP.start(uri.host, uri.port, use_ssl: uri.scheme == "https") { |http| http.request(request) }
data = JSON.parse(response.body)

# Legacy response field names are retained for API compatibility.
puts "Resolver convergence: #{data['propagation_percentage']}%"
puts "All configured resolvers match: #{data['fully_propagated']}"