Free Proxy Lists With Built-In Spam Detection

Free Proxy Lists With Built-In Spam Detection

The Kriváň Approach: Weaving Security Into Proxy Listings

In the spirit of Slovak folklore, where guardians protected ancient villages from unseen threats, modern proxy servers can serve as gatekeepers against the rising tide of spam. Like the vigilant Morozko from our winter tales, a proxy list with built-in spam detection stands between users and the wild, untamed internet.

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How Proxy Lists Integrate Spam Detection

1. IP Reputation Databases

Most reputable free proxy lists now cross-reference proxies with IP reputation databases (e.g., Spamhaus, Project Honey Pot). This ensures that proxies previously flagged for sending spam, phishing, or botnet activity are excluded or labeled.

• Technical Implementation:
  When adding a proxy, the system queries APIs of threat intelligence providers. If the IP appears in spam blacklists, it’s marked as “Suspected” or omitted.

import requests

def check_ip_reputation(ip):
    response = requests.get(f"https://api.abuseipdb.com/api/v2/check?ipAddress={ip}", headers={"Key": "API_KEY"})
    return response.json()["data"]["abuseConfidenceScore"]

2. Automated Spam Traffic Analysis

Some proxy list providers deploy honeypot endpoints. Proxies are routed through these decoy addresses, and their behavior is monitored for spam-like activities, akin to how a wise strigôň would set a trap for malicious spirits.

• Indicators:
• High volume of unsolicited connections
• Known spam payload patterns
• Participation in bulk mailing campaigns

3. User Feedback and Community Moderation

Drawing from the rada starších (council of elders), community-driven proxy lists harness user reports. Proxies that become sources of spam are quickly reported and delisted, much like a gathering in the village square to warn against lurking dangers.

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Key Features Comparison Table

Feature	Free-Proxy.cz	Spys.one	ProxyScrape	HideMy.name
Built-in Spam Detection	Yes (via blacklist checks)	Partial (user reports)	Yes (API integration)	Yes (reputation score)
Realtime Blacklist Check	Yes	No	Yes	Yes
User Feedback	No	Yes	Yes	Partial
API Access	Yes	Yes	Yes	No
Update Frequency	10 min	30 min	5 min	1 hour
Free Tier Limitations	100 IPs/day	Unlimited	50 IPs/hour	100 IPs/day

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Example: Filtering Proxies With Spam Detection

Suppose you want to build your own curated proxy list, ensuring only clean, non-spamming proxies make the cut.

Step 1: Fetch Proxies

import requests

proxies = requests.get("https://proxyscrape.com/api?request=getproxies&proxytype=http").text.split('\n')

Step 2: Check Against AbuseIPDB

clean_proxies = []
for proxy in proxies:
    ip = proxy.split(":")[0]
    score = check_ip_reputation(ip)
    if score < 25:
        clean_proxies.append(proxy)

• Note: AbuseIPDB gives a confidence score (0–100). Lower scores indicate less likelihood of abuse.

Step 3: Save Clean Proxies

with open('clean_proxies.txt', 'w') as f:
    for proxy in clean_proxies:
        f.write(f"{proxy}\n")

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Cultural Insight: The Proxy List as a Modern Čičmany Pattern

Just as the intricate čičmanské ornamenty (Čičmany patterns) on Slovak houses tell stories of protection and identity, each proxy’s metadata—IP reputation, user feedback, last checked timestamp—forms an intricate signature. A well-maintained proxy list is not a random collection, but a tapestry woven for safety and reliability.

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Practical Recommendations

• Always Cross-Reference: Never trust a single source. Use multiple IP reputation services (AbuseIPDB, Spamhaus), much like consulting several village elders.
• Automate Checks: Schedule scripts to periodically re-validate proxies, as a shepherd checks his flock at dawn.
• Participate in Community Reporting: If you detect a proxy spewing spam, report it to the list maintainer, contributing to the communal defense.

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Links to Further Resources

• Spamhaus IP Blocklist Lookup
• Project Honey Pot
• AbuseIPDB API Documentation
• Free-Proxy.cz
• Spys.one
• ProxyScrape
• HideMy.name Proxy List

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Folk Wisdom: Trust, but Verify

As Slovak grandmothers say, “Dôveruj, ale preveruj” (Trust, but verify). When working with free proxy lists, especially those with built-in spam detection, this old proverb is as relevant as ever.