SSL Certificate Examples · Example 1 of 4 in Valid Certificates

Certificate of a Domain

GEThttps://api.deepinfo.com/v1/lookup/ssl

The certificate of deepinfo.com: issued by Google Trust Services (WE1) for deepinfo.com and *.deepinfo.com, valid, ECDSA key.

Param: target
Value: deepinfo.com

Asks for the certificate on deepinfo.com, port 443 (the default).

connection_status is success. The certificate is issued to CN=deepinfo.com by WE1 of Google Trust Services, valid from August 22 to November 20, 2026 (validity.length 7,779,585 seconds, 90 days). signature.valid and valid_chain are true and invalid_reason is null. The Subject Alternative Name covers deepinfo.com and *.deepinfo.com; the key is a 256-bit ECDSA key.

Request

curl

curl 'https://api.deepinfo.com/v1/lookup/ssl?target=deepinfo.com' \
  -H 'apikey: YOUR_API_KEY' \
  -H 'Accept: application/json'

Python

import requests

url = "https://api.deepinfo.com/v1/lookup/ssl"

params = {
    "target": "deepinfo.com"
}

headers = {
    "apikey": "YOUR_API_KEY",
    "Accept": "application/json"
}

response = requests.get(url, params=params, headers=headers)
response.raise_for_status()
print(response.json())

JavaScript

const url = "https://api.deepinfo.com/v1/lookup/ssl?target=deepinfo.com";

const response = await fetch(url, {
  method: "GET",
  headers: {
    "apikey": "YOUR_API_KEY",
    "Accept": "application/json"
  },
});

const data = await response.json();
console.log(data);

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	req, err := http.NewRequest("GET", "https://api.deepinfo.com/v1/lookup/ssl?target=deepinfo.com", nil)
	if err != nil {
		panic(err)
	}
	req.Header.Set("apikey", "YOUR_API_KEY")
	req.Header.Set("Accept", "application/json")

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()

	body, err := io.ReadAll(res.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(string(body))
}

Java

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create("https://api.deepinfo.com/v1/lookup/ssl?target=deepinfo.com"))
            .header("apikey", "YOUR_API_KEY")
            .header("Accept", "application/json")
            .GET()
            .build();

        HttpResponse<String> response = HttpClient.newHttpClient()
            .send(request, HttpResponse.BodyHandlers.ofString());

        System.out.println(response.body());
    }
}

using System;
using System.Net.Http;

using var client = new HttpClient();

var request = new HttpRequestMessage(HttpMethod.Get, "https://api.deepinfo.com/v1/lookup/ssl?target=deepinfo.com");
request.Headers.Add("apikey", "YOUR_API_KEY");
request.Headers.Add("Accept", "application/json");

using var response = await client.SendAsync(request);
Console.WriteLine(await response.Content.ReadAsStringAsync());

PHP

<?php

$curl = curl_init();

curl_setopt_array($curl, [
    CURLOPT_URL => 'https://api.deepinfo.com/v1/lookup/ssl?target=deepinfo.com',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'apikey: YOUR_API_KEY',
        'Accept: application/json',
    ],
]);

$response = curl_exec($curl);

if ($response === false) {
    throw new RuntimeException(curl_error($curl));
}

echo $response . PHP_EOL;

Ruby

require 'net/http'
require 'uri'

uri = URI('https://api.deepinfo.com/v1/lookup/ssl?target=deepinfo.com')

request = Net::HTTP::Get.new(uri)
request['apikey'] = 'YOUR_API_KEY'
request['Accept'] = 'application/json'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: uri.scheme == 'https') do |http|
  http.request(request)
end

puts response.body

Response

200 OK · application/json

Response Body

{
  "target": "deepinfo.com",
  "port": 443,
  "check_date": "2026-09-24T07:51:53Z",
  "connection_status": "success",
  "parsed": {
    "version": {
      "name": "v3",
      "value": "2"
    },
    "fingerprint_sha1": "5102c880b9f106836e519b298180d61b676159c8",
    "fingerprint_sha256": "12a3374625c71344dca023d3fd679c8603b98712dc07b5489dde7fd65ad8ce50",
    "fingerprint_md5": "d168f284acc2bd12ef0942ca7b8437ce",
    "subject": {
      "dn": "CN=deepinfo.com",
      "common_name": "deepinfo.com",
      "country_name": null,
      "locality": null,
      "organization": null,
      "organizational_unit": null,
      "state": null
    },
    "signature": {
      "value": "MEQCIBNf/tDQrmobCrlLn6qx00hK9xB2VIsUv0js2QhljzehAiAK9Wa5vq0T/Nvr+MrtthEr/AY+sHMi+vIKZEgArZAAUg==",
      "self_signed": false,
      "valid": true,
      "valid_chain": true,
      "invalid_reason": null,
      "signature_algorithm": {
        "oid": "1.2.840.10045.4.3.2",
        "name": "sha256"
      }
    },
    "validity": {
      "start": "2026-08-22T16:13:55Z",
      "length": 7779585,
      "end": "2026-11-20T17:13:40Z"
    },
    "issuer": {
      "dn": "CN=WE1,O=Google Trust Services,C=US",
      "common_name": "WE1",
      "country_name": "US",
      "locality": null,
      "organization": "Google Trust Services",
      "organizational_unit": null,
      "state": null
    },
    "extensions": {
      "key_usage": {
        "digital_signature": true,
        "content_commitment": false,
        "key_agreement": false,
        "data_encipherment": false,
        "key_encipherment": false,
        "key_cert_sign": false,
        "crl_sign": false
      },
      "extended_key_usage": {
        "server_auth": true
      },
      "basic_constraints": {
        "is_ca": false
      },
      "subject_key_identifier": {
        "digest": "p0cCg0usJcT4dOaSGZXGwJBtEBw="
      },
      "authority_key_identifier": {
        "key_identifier": "kHeSNWfE/6jMqeZ72YB5e8yT+Tg="
      },
      "authority_info_access": {
        "caissuers_urls": "http://i.pki.goog/we1.crt"
      },
      "subject_alt_name": {
        "dns_names": [
          "deepinfo.com",
          "*.deepinfo.com"
        ]
      },
      "certificate_policies": [
        "2.23.140.1.2.1"
      ],
      "crl_distribution_points": [
        "http://c.pki.goog/we1/hxWfeVec_R4.crl"
      ],
      "signed_certificate_timestamp": [
        {
          "log_id": "wjF+V0UZo0XufzjespBB68fCIVoiv3/Vta12mtkOUs0=",
          "timestamp": 1787418836,
          "version": 0,
          "signature": "MEQCICgG2IGcayVZ+Ttkz2l/ZwOu8iCGIvPw1vmC7YzrgGizAiAcefN4O0thG7GGL8SJReLUyvnamb10T1HE4ao3Qla3xg=="
        },
        {
          "log_id": "1219ENGn9XfCx+lf1wC/+YLJM1pl4dCzAXMXwMjFaXc=",
          "timestamp": 1787418836,
          "version": 0,
          "signature": "MEUCIQC7tTqXR/P93QDZTvumLFie/5Ic+z5tybPkmYTq948+wgIgFPm8YcnJu/CmGa9vl0sKxkiI21PTM1HmZWTA6Rkq6ts="
        }
      ],
      "other_extensions": []
    },
    "serial_number": "175099252490783179325599447426535789523",
    "tbs_fingerprint": "8fd171df12e6296f987fbb69506eb38cfbf61ce8c3afef080788b338ce96f289",
    "subject_key_info": {
      "fingerprint": {
        "hash_algorithm_name": "sha256",
        "value": "12a3374625c71344dca023d3fd679c8603b98712dc07b5489dde7fd65ad8ce50"
      },
      "key_algorithm": {
        "name": "ECDSA"
      },
      "ecdsa_public_key": {
        "length": "256",
        "x": "21201999730139012709824012335874547273352194066646550944879963279817511306367",
        "y": "45576670326640749315426684723968379373483736538821867599901561713273067300353"
      }
    },
    "has_expired": false,
    "fqdn_list": [
      "deepinfo.com"
    ]
  },
  "certificate": "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",
  "parse_errors": []
}

Content-Type: application/json
ratelimit-limit: 100
ratelimit-remaining: 99
ratelimit-reset: 7
x-ratelimit-limit-minute: 100
x-ratelimit-remaining-minute: 99
deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a

Request

What this example sends. Every parameter is documented on SSL; the exact request is in the code panel.

Parameter	Value
`target`query	`deepinfo.com`

Reference updated September 24, 2026

Request

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