Скрипт DNS Checker — Поиск лучшего DNS

Не нашел такого скрипта и решил сам закинуть. Может будет полезно кому, затестите поставите. Сделал потому, что у меня чет ****аться началось

bot.py

import dns.resolver
import time
import statistics
import concurrent.futures
import csv
import sys
import subprocess
import re
from typing import List, Dict, Optional, Tuple, Set

DNS_SERVERS_FILE = "dns_servers.csv"
TEST_DOMAIN = "google.com"
QUERY_COUNT = 5
TIMEOUT = 2.0

def get_system_dns_servers() -> List[str]:
system_dns = []
try:
if sys.platform == "win32":
result = subprocess.run(["ipconfig", "/all"], capture_output=True, text=True, encoding='cp866', errors='ignore')
dns_servers = re.findall(r"DNS Servers.*: ([\d.]+)", result.stdout)
system_dns.extend(ip.strip() for ip in dns_servers if ip.strip())
else:
with open("/etc/resolv.conf", "r") as f:
for line in f:
if line.strip().startswith("nameserver"):
parts = line.strip().split()
if len(parts) > 1:
system_dns.append(parts[1])
except Exception as e:
print(f"[!] Не удалось определить системные DNS-серверы: {e}")

unique_dns = sorted(list(set(system_dns)))
if unique_dns:
print(f"[+] Обнаружены системные DNS: {', '.join(unique_dns)}")
return unique_dns

def load_servers_and_metadata(filename: str, system_dns: List[str]) -> Tuple[List[str], Dict[str, Dict]]:
all_ips_to_test: Set[str] = set()
metadata_map: Dict[str, Dict] = {}

for ip in system_dns:
all_ips_to_test.add(ip)
metadata_map[ip] = {'provider': 'System DNS', 'country': 'Local', 'partner': 'N/A'}

try:
with open(filename, 'r', encoding='utf-8') as f:
reader = csv.reader(f)
for row in reader:
if not row or row[0].strip().startswith('#'): continue

provider, country, primary_ip = map(str.strip, row[:3])
secondary_ip = row[3].strip() if len(row) > 3 and row[3].strip() else None

if not primary_ip: continue

all_ips_to_test.add(primary_ip)
metadata_map[primary_ip] = {'provider': provider, 'country': country, 'partner': secondary_ip}

if secondary_ip:
all_ips_to_test.add(secondary_ip)
metadata_map[secondary_ip] = {'provider': provider, 'country': country, 'partner': primary_ip}

print(f"[+] Загружено {len(all_ips_to_test)} уникальных IP-адресов для теста.")
return list(all_ips_to_test), metadata_map

except FileNotFoundError:
print(f"[!] Ошибка: Файл '{filename}' не найден. Пожалуйста, создайте его.")
return list(all_ips_to_test), metadata_map
except Exception as e:
print(f"[!] Критическая ошибка при чтении файла '{filename}': {e}")
return list(all_ips_to_test), metadata_map

def test_single_dns_server(server_ip: str) -> Tuple[str, Optional[float]]:
resolver = dns.resolver.Resolver()
resolver.nameservers = [server_ip]
resolver.timeout = TIMEOUT
resolver.lifetime = TIMEOUT
timings = []
try:
for _ in range(QUERY_COUNT):
start_time = time.perf_counter()
resolver.resolve(TEST_DOMAIN, 'A')
end_time = time.perf_counter()
timings.append((end_time - start_time) * 1000)
return server_ip, statistics.mean(timings)
except Exception:
return server_ip, None

def main():
system_dns = get_system_dns_servers()
all_ips, metadata = load_servers_and_metadata(DNS_SERVERS_FILE, system_dns)
if not all_ips:
return

results: Dict[str, float] = {}
failed_servers: List[str] = []

print(f"\n[*] Начинаю тестирование {len(all_ips)} IP-адресов.")

with concurrent.futures.ThreadPoolExecutor(max_workers=len(all_ips)) as executor:
future_to_server = {executor.submit(test_single_dns_server, ip): ip for ip in all_ips}

for future in concurrent.futures.as_completed(future_to_server):
server_ip, avg_time = future.result()
if avg_time is not None:
results[server_ip] = avg_time
print(f" [+] {server_ip:<15} - Успешно (Среднее: {avg_time:.2f} мс)")
else:
failed_servers.append(server_ip)
print(f" [!] {server_ip:<15} - Не отвечает")

print("\n" + "="*90)
print("--- Итоговые результаты тестирования ---".center(90))
print("="*90)

if not results:
print("Не удалось получить ответ ни от одного сервера.".center(90))
else:
sorted_results = sorted(results.items(), key=lambda item: item[1])

print(f"{'#':<4} {'IP-пара (dns1 / dns2)':<34} {'Провайдер':<20} {'Страна':<12} {'Время (мс)':<12}")
print("-" * 90)
for i, (server, timing) in enumerate(sorted_results, 1):
info = metadata.get(server, {})
provider = info.get('provider', 'N/A')
country = info.get('country', 'N/A')
partner = info.get('partner', '---') or '---'

is_system = provider == 'System DNS'
marker = '*' if is_system else ' '

ip_pair = f"{server} / {partner}" if partner != '---' and partner != 'N/A' else server

print(f"{marker}{i:<3} {ip_pair:<34} {provider:<20} {country:<12} {timing:<12.2f}")

print("-" * 90)
print("* - DNS, настроенный в вашей операционной системе.")

best_server_ip, best_server_time = sorted_results[0]
best_provider = metadata.get(best_server_ip, {}).get('provider', 'N/A')
print(f"\n Самый быстрый DNS-сервер: {best_server_ip} ({best_provider}) со средним временем {best_server_time:.2f} мс")

system_results = {ip: time for ip, time in results.items() if ip in system_dns}
if system_results:
best_system_ip = min(system_results, key=system_results.get)
best_system_time = system_results[best_system_ip]
print(f" ваш системный DNS ({best_system_ip}) показал результат {best_system_time:.2f} мс")

# if failed_servers:
# print("\nСледующие серверы не ответили на запросы:")
# for server in sorted(failed_servers): #
# print(f" - {server}")
#
# раскоментируйте если вам это надо, но будет много спама (там вроде 1/3 dns не отвечает нихуя из моей базы)
if __name__ == "__main__":
main()

Python

import dns.resolver

import time

import statistics

import concurrent.futures

import csv

import sys

import subprocess

import re

from typing import List, Dict, Optional, Tuple, Set



DNS_SERVERS_FILE = "dns_servers.csv"

TEST_DOMAIN = "google.com"

QUERY_COUNT = 5

TIMEOUT = 2.0



def get_system_dns_servers() -> List[str]:

    system_dns = []

    try:

        if sys.platform == "win32":

            result = subprocess.run(["ipconfig", "/all"], capture_output=True, text=True, encoding='cp866', errors='ignore')

            dns_servers = re.findall(r"DNS Servers.*: ([\d.]+)", result.stdout)

            system_dns.extend(ip.strip() for ip in dns_servers if ip.strip())

        else:

            with open("/etc/resolv.conf", "r") as f:

                for line in f:

                    if line.strip().startswith("nameserver"):

                        parts = line.strip().split()

                        if len(parts) > 1:

                            system_dns.append(parts[1])

    except Exception as e:

        print(f"[!] Не удалось определить системные DNS-серверы: {e}")

    

    unique_dns = sorted(list(set(system_dns)))

    if unique_dns:

        print(f"[+] Обнаружены системные DNS: {', '.join(unique_dns)}")

    return unique_dns



def load_servers_and_metadata(filename: str, system_dns: List[str]) -> Tuple[List[str], Dict[str, Dict]]:

    all_ips_to_test: Set[str] = set()

    metadata_map: Dict[str, Dict] = {}

    

    for ip in system_dns:

        all_ips_to_test.add(ip)

        metadata_map[ip] = {'provider': 'System DNS', 'country': 'Local', 'partner': 'N/A'}



    try:

        with open(filename, 'r', encoding='utf-8') as f:

            reader = csv.reader(f)

            for row in reader:

                if not row or row[0].strip().startswith('#'): continue

                

                provider, country, primary_ip = map(str.strip, row[:3])

                secondary_ip = row[3].strip() if len(row) > 3 and row[3].strip() else None



                if not primary_ip: continue



                all_ips_to_test.add(primary_ip)

                metadata_map[primary_ip] = {'provider': provider, 'country': country, 'partner': secondary_ip}

                

                if secondary_ip:

                    all_ips_to_test.add(secondary_ip)

                    metadata_map[secondary_ip] = {'provider': provider, 'country': country, 'partner': primary_ip}



        print(f"[+] Загружено {len(all_ips_to_test)} уникальных IP-адресов для теста.")

        return list(all_ips_to_test), metadata_map

        

    except FileNotFoundError:

        print(f"[!] Ошибка: Файл '{filename}' не найден. Пожалуйста, создайте его.")

        return list(all_ips_to_test), metadata_map

    except Exception as e:

        print(f"[!] Критическая ошибка при чтении файла '{filename}': {e}")

        return list(all_ips_to_test), metadata_map



def test_single_dns_server(server_ip: str) -> Tuple[str, Optional[float]]:

    resolver = dns.resolver.Resolver()

    resolver.nameservers = [server_ip]

    resolver.timeout = TIMEOUT

    resolver.lifetime = TIMEOUT

    timings = []

    try:

        for _ in range(QUERY_COUNT):

            start_time = time.perf_counter()

            resolver.resolve(TEST_DOMAIN, 'A')

            end_time = time.perf_counter()

            timings.append((end_time - start_time) * 1000)

        return server_ip, statistics.mean(timings)

    except Exception:

        return server_ip, None



def main():

    system_dns = get_system_dns_servers()

    all_ips, metadata = load_servers_and_metadata(DNS_SERVERS_FILE, system_dns)

    if not all_ips:

        return



    results: Dict[str, float] = {}

    failed_servers: List[str] = []



    print(f"\n[*] Начинаю тестирование {len(all_ips)} IP-адресов.")

    

    with concurrent.futures.ThreadPoolExecutor(max_workers=len(all_ips)) as executor:

        future_to_server = {executor.submit(test_single_dns_server, ip): ip for ip in all_ips}

        

        for future in concurrent.futures.as_completed(future_to_server):

            server_ip, avg_time = future.result()

            if avg_time is not None:

                results[server_ip] = avg_time

                print(f"  [+] {server_ip:<15} - Успешно (Среднее: {avg_time:.2f} мс)")

            else:

                failed_servers.append(server_ip)

                print(f"  [!] {server_ip:<15} - Не отвечает")



    print("\n" + "="*90)

    print("--- Итоговые результаты тестирования ---".center(90))

    print("="*90)



    if not results:

        print("Не удалось получить ответ ни от одного сервера.".center(90))

    else:

        sorted_results = sorted(results.items(), key=lambda item: item[1])

        

        print(f"{'#':<4} {'IP-пара (dns1 / dns2)':<34} {'Провайдер':<20} {'Страна':<12} {'Время (мс)':<12}")

        print("-" * 90)

        for i, (server, timing) in enumerate(sorted_results, 1):

            info = metadata.get(server, {})

            provider = info.get('provider', 'N/A')

            country = info.get('country', 'N/A')

            partner = info.get('partner', '---') or '---'

            

            is_system = provider == 'System DNS'

            marker = '*' if is_system else ' '

            

            ip_pair = f"{server} / {partner}" if partner != '---' and partner != 'N/A' else server

            

            print(f"{marker}{i:<3} {ip_pair:<34} {provider:<20} {country:<12} {timing:<12.2f}")

        

        print("-" * 90)

        print("* - DNS, настроенный в вашей операционной системе.")



        best_server_ip, best_server_time = sorted_results[0]

        best_provider = metadata.get(best_server_ip, {}).get('provider', 'N/A')

        print(f"\n Самый быстрый DNS-сервер: {best_server_ip} ({best_provider}) со средним временем {best_server_time:.2f} мс")

        

        system_results = {ip: time for ip, time in results.items() if ip in system_dns}

        if system_results:

            best_system_ip = min(system_results, key=system_results.get)

            best_system_time = system_results[best_system_ip]

            print(f" ваш системный DNS ({best_system_ip}) показал результат {best_system_time:.2f} мс")



#    if failed_servers:

#        print("\nСледующие серверы не ответили на запросы:")

#        for server in sorted(failed_servers): #

#            print(f"  - {server}")

#

# раскоментируйте если вам это надо, но будет много спама (там вроде 1/3 dns не отвечает нихуя из моей базы)

if __name__ == "__main__":

    main()

dns_servers.csv

Google,USA,8.8.8.8,8.8.4.4
Cloudflare,USA,1.1.1.1,1.0.0.1
Quad9,USA,9.9.9.9,149.112.112.112
OpenDNS Home,USA,208.67.222.222,208.67.220.220
Verisign,USA,64.6.64.6,64.6.65.6
Level3,USA,209.244.0.3,209.244.0.4
Neustar,USA,156.154.70.1,156.154.71.1
AdGuard DNS,Cyprus,94.140.14.14,94.140.15.15
AdGuard Family,Cyprus,94.140.14.15,94.140.15.16
Cloudflare Malware,USA,1.1.1.2,1.0.0.2
Cloudflare Family,USA,1.1.1.3,1.0.0.3
Quad9 (Malware + NoECS),USA,9.9.9.10,149.112.112.10
OpenDNS FamilyShield,USA,208.67.222.123,208.67.220.123
CleanBrowsing (Security),USA,185.228.168.9,185.228.169.9
CleanBrowsing (Adult),USA,185.228.168.10,185.228.169.10
CleanBrowsing (Family),USA,185.228.168.168,185.228.169.168
Comodo Secure,USA,8.26.56.26,8.20.247.20
Norton ConnectSafe-A,USA,199.85.126.10,199.85.127.10
Norton ConnectSafe-B,USA,199.85.126.20,199.85.127.20
Norton ConnectSafe-C,USA,199.85.126.30,199.85.127.30
Neustar (Malware),USA,156.154.70.2,156.154.71.2
Neustar (Porn),USA,156.154.70.3,156.154.71.3
Neustar (Gambling),USA,156.154.70.4,156.154.71.4
DNS.WATCH,Germany,84.200.69.80,84.200.70.40
UncensoredDNS,Denmark,91.239.100.100,89.233.43.71
Freenom,Netherlands,80.80.80.80,80.80.81.81
Alternate DNS,USA,76.76.19.19,76.223.122.150
Censurfridns,Denmark,89.233.43.71,91.239.100.100
Digitalcourage,Germany,5.9.164.112,
Swiss Privacy,Switzerland,194.182.168.60,
Applied Privacy,Austria,146.255.56.98,
LibreDNS,Switzerland,116.203.115.194,
Yandex,Russia,77.88.8.8,77.88.8.1
Yandex Safe,Russia,77.88.8.88,77.88.8.2
Yandex Family,Russia,77.88.8.7,77.88.8.3
Mail.ru,Russia,94.100.184.201,
SkyDNS,Russia,193.58.251.123,
MTS,Russia,193.232.248.2,213.87.1.2
Beeline,Russia,85.21.192.3,213.24.94.3
Rostelecom (Moscow),Russia,195.34.131.20,
Rostelecom (Ural),Russia,8.8.8.8,77.88.8.8
Rostelecom (Siberia),Russia,212.1.224.6,212.1.244.6
Megafon,Russia,10.10.10.10,
CZ.NIC,Czech Republic,185.43.135.1,193.17.47.1
OVH,France,213.186.33.99,
Deutsche Telekom,Germany,194.25.2.129,
Hurricane Electric,USA,74.82.42.42,
OpenNIC (EU),Europe,109.74.192.20,
OpenNIC (FR),France,193.110.157.32,
OpenNIC (DE),Germany,163.172.168.171,
114DNS,China,114.114.114.114,114.114.115.115
AliDNS,China,223.5.5.5,223.6.6.6
BaiduDNS,China,180.76.76.76,
DNSPod,China,119.29.29.29,182.254.116.116
NTT,Japan,129.250.35.250,129.250.35.251
KT Corporation,South Korea,168.126.63.1,168.126.63.2
SafeDNS,USA,195.46.39.39,195.46.39.40
Dyn,USA,216.146.35.35,216.146.36.36
FreeDNS,Austria,37.235.1.174,37.235.1.177
PuntCAT,Spain,109.69.8.51,
Fourth Estate,USA,45.77.165.194,

Код

Google,USA,8.8.8.8,8.8.4.4

Cloudflare,USA,1.1.1.1,1.0.0.1

Quad9,USA,9.9.9.9,149.112.112.112

OpenDNS Home,USA,208.67.222.222,208.67.220.220

Verisign,USA,64.6.64.6,64.6.65.6

Level3,USA,209.244.0.3,209.244.0.4

Neustar,USA,156.154.70.1,156.154.71.1

AdGuard DNS,Cyprus,94.140.14.14,94.140.15.15

AdGuard Family,Cyprus,94.140.14.15,94.140.15.16

Cloudflare Malware,USA,1.1.1.2,1.0.0.2

Cloudflare Family,USA,1.1.1.3,1.0.0.3

Quad9 (Malware + NoECS),USA,9.9.9.10,149.112.112.10

OpenDNS FamilyShield,USA,208.67.222.123,208.67.220.123

CleanBrowsing (Security),USA,185.228.168.9,185.228.169.9

CleanBrowsing (Adult),USA,185.228.168.10,185.228.169.10

CleanBrowsing (Family),USA,185.228.168.168,185.228.169.168

Comodo Secure,USA,8.26.56.26,8.20.247.20

Norton ConnectSafe-A,USA,199.85.126.10,199.85.127.10

Norton ConnectSafe-B,USA,199.85.126.20,199.85.127.20

Norton ConnectSafe-C,USA,199.85.126.30,199.85.127.30

Neustar (Malware),USA,156.154.70.2,156.154.71.2

Neustar (Porn),USA,156.154.70.3,156.154.71.3

Neustar (Gambling),USA,156.154.70.4,156.154.71.4

DNS.WATCH,Germany,84.200.69.80,84.200.70.40

UncensoredDNS,Denmark,91.239.100.100,89.233.43.71

Freenom,Netherlands,80.80.80.80,80.80.81.81

Alternate DNS,USA,76.76.19.19,76.223.122.150

Censurfridns,Denmark,89.233.43.71,91.239.100.100

Digitalcourage,Germany,5.9.164.112,

Swiss Privacy,Switzerland,194.182.168.60,

Applied Privacy,Austria,146.255.56.98,

LibreDNS,Switzerland,116.203.115.194,

Yandex,Russia,77.88.8.8,77.88.8.1

Yandex Safe,Russia,77.88.8.88,77.88.8.2

Yandex Family,Russia,77.88.8.7,77.88.8.3

Mail.ru,Russia,94.100.184.201,

SkyDNS,Russia,193.58.251.123,

MTS,Russia,193.232.248.2,213.87.1.2

Beeline,Russia,85.21.192.3,213.24.94.3

Rostelecom (Moscow),Russia,195.34.131.20,

Rostelecom (Ural),Russia,8.8.8.8,77.88.8.8

Rostelecom (Siberia),Russia,212.1.224.6,212.1.244.6

Megafon,Russia,10.10.10.10,

CZ.NIC,Czech Republic,185.43.135.1,193.17.47.1

OVH,France,213.186.33.99,

Deutsche Telekom,Germany,194.25.2.129,

Hurricane Electric,USA,74.82.42.42,

OpenNIC (EU),Europe,109.74.192.20,

OpenNIC (FR),France,193.110.157.32,

OpenNIC (DE),Germany,163.172.168.171,

114DNS,China,114.114.114.114,114.114.115.115

AliDNS,China,223.5.5.5,223.6.6.6

BaiduDNS,China,180.76.76.76,

DNSPod,China,119.29.29.29,182.254.116.116

NTT,Japan,129.250.35.250,129.250.35.251

KT Corporation,South Korea,168.126.63.1,168.126.63.2

SafeDNS,USA,195.46.39.39,195.46.39.40

Dyn,USA,216.146.35.35,216.146.36.36

FreeDNS,Austria,37.235.1.174,37.235.1.177

PuntCAT,Spain,109.69.8.51,

Fourth Estate,USA,45.77.165.194,

Запуск

скопируйте код bot.py
создайте файл dns_servers.csv и вставьте адреса выше
pip install dnspython
python bot.py

он сам просканит адреса и скинет лучший ввиде таблицы, так же с вашим сравнит
некоторые у вас упадут (они не отображаются, но можно раскомментировать строчки внизу и будет видно какие упали)

ПРИМЕР

мейлру днс