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Net::DNS - scraper resolves domains into IP addresses

Overview​

OverviewNet::DNSNet::DNS – collects DNS records of a domain name. Automated mass resolving of domain databases, checking domain availability.

The functionality of A-Parser allows you to save the scraper's Net::DNS parsing settings for future use (presets), set a parsing schedule, and much more.

Saving results is possible in the form and structure you need, thanks to the built-in powerful templating engine Template Toolkit which allows you to apply additional logic to the results and output data in various formats, including JSON, SQL, and CSV.

Collected data​

  • List of IP addresses
  • Used DNS server on a successful query
  • DNS record of any type (displayed in JSON format, which makes it convenient to obtain their individual parameters)

Use cases​

  • Resolving domain databases
  • Checking domain availability

Queries​

As queries, you need to specify a list of domains, for example:

a-parser.com  
yandex.ru  
google.com  
vk.com  
facebook.com  
youtube.com

Output results examples​

A-Parser supports flexible formatting of results thanks to the built-in templating engine Template Toolkit, which allows it to output results in any form, as well as in structured formats, such as CSV or JSON

Default output​

Result format:

$query: $ip ($ips.format('$ip, '))\n

The result shows the domain and its IP addresses:

youtube.com: 173.194.70.136 (173.194.70.136, 173.194.70.190, 173.194.70.93, 173.194.70.91, )  
google.com: 46.28.247.98 (46.28.247.98, 46.28.247.89, 46.28.247.84, 46.28.247.108, 46.28.247.119, 46.28.247.114, 46.28.247.88, 46.28.247.94, 46.28.247.99, 46.28.247.109, 46.28.247.93, 46.28.247.104, 46.28.247.113, 46.28.247.118, 46.28.247.123, 46.28.247.103, )  
facebook.com: 173.252.110.27 (173.252.110.27, )  
a-parser.com: 176.9.9.90 (176.9.9.90, )  
vk.com: 87.240.143.244 (87.240.143.244, 87.240.131.120, )  
yandex.ru: 93.158.134.11 (93.158.134.11, 213.180.193.11, 213.180.204.11, 77.88.21.11, 87.250.250.11, )

Saving in SQL format​

Result format:

[% "INSERT INTO dns VALUES('" _ query _ "', '" _ ip _ "', '" _ ips.format('$ip, ') _ "')\n" %]

Example of result:

INSERT INTO dns VALUES('vk.com', '87.240.190.67', '87.240.190.67, 87.240.190.72, 87.240.190.78, 93.186.225.208, 87.240.137.158, 87.240.139.194, ')
INSERT INTO dns VALUES('a-parser.com', '176.9.9.90', '176.9.9.90, ')
INSERT INTO dns VALUES('yandex.ru', '5.255.255.50', '5.255.255.50, 77.88.55.50, 77.88.55.88, 5.255.255.5, ')
INSERT INTO dns VALUES('facebook.com', '157.240.19.35', '157.240.19.35, ')
INSERT INTO dns VALUES('youtube.com', '172.217.171.238', '172.217.171.238, ')

Dumping results to JSON​

Общий формат результата:

[% IF notFirst;
  ",\n";
ELSE;
  notFirst = 1;
END;

obj = {};
obj.query = query;
obj.ips = p1.ips;

obj.json %]

Начальный текст:

[

Конечный текст:

]

Example of result:

[
    {"ips":[{"ip":"176.9.9.90"}],"query":"http://a-parser.com/"},
    {"ips":[{"ip":"172.217.173.78"}],"query":"http://google.com/"},
    {"ips":[{"ip":"77.88.55.60"},{"ip":"77.88.55.66"},{"ip":"5.255.255.55"},{"ip":"5.255.255.60"}],"query":"http://yandex.ru/"},
    {"ips":[{"ip":"172.217.25.14"}],"query":"http://youtube.com/"},
    {"ips":[{"ip":"87.240.190.78"},{"ip":"93.186.225.208"},{"ip":"87.240.137.158"},{"ip":"87.240.139.194"},{"ip":"87.240.190.67"},{"ip":"87.240.190.72"}],"query":"http://vk.com/"},
    {"ips":[{"ip":"157.240.196.35"}],"query":"http://facebook.com/"}
]
tip

To make the "Start text" and "End text" options available in the Task Editor, you need to activate "More options".

Possible settings​

note

Common settings for all scrapers

ParameterDefault valueDescription
DNS Servers208.67.220.220, 8.8.8.8Supports multiple servers separated by commas
Not found is error☐Allows rechecking false responses from DNS servers
Rotation typeConsistentlyMethod for selecting the next DNS server (Sequentially/Randomly)
Ban not working servers☑Ban non-working servers using a heuristic algorithm for 20 minutes, if there is only one server left - it does not get banned
Query typeA - Address recordAllows you to select the type of record
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