Understanding ASN (Autonomous System Number)
An Autonomous System Number (ASN) is a unique identifier assigned to a network (or group of networks) that operates under a single routing policy. Every ISP, hosting provider, cloud service, and large organization that manages its own IP address space is assigned an ASN by a regional internet registry.
ASNs allow security tools to identify not just individual IP addresses but the organization operating them. For example, traffic from an ASN belonging to a known datacenter hosting provider is more likely to be bot traffic than traffic from a residential ISP's ASN.
Why ASN (Autonomous System Number) Matters for Shopify Stores
ASN data helps Shopify stores distinguish between legitimate residential traffic and suspicious datacenter or hosting provider traffic. By identifying the network operator behind a visitor, you can make more informed blocking decisions than IP-level analysis alone provides.
How SecurEcommerce Helps with ASN (Autonomous System Number)
IP Blocking
Block malicious traffic by IP address, range, country, region, or ISP
- • Individual IP address blocking
- • IP range (CIDR notation) blocking
- • Country-level blocking with bulk selection
VPN & Proxy Blocking
Detect and block visitors using VPNs, proxies, and anonymizing services
- • VPN detection via ProxyCheck.io integration
- • Proxy server detection
- • Provider identification (NordVPN, ExpressVPN, etc.)
Frequently Asked Questions
Frequently Asked Questions
How are ASNs used in fraud prevention?
ASNs identify the network operator behind traffic. If an order comes from an ASN belonging to a cloud hosting provider rather than a residential ISP, it is a strong indicator of bot or proxy activity rather than a legitimate customer.
Can I block an entire ASN?
Yes, blocking by ASN allows you to block all IP addresses belonging to a specific network operator. This is useful for blocking entire datacenter ranges or known bot hosting providers.
Related Terms
IP Blocking
Access ControlPreventing specific IP addresses or ranges from accessing your website.
Datacenter IP
Access ControlIP addresses belonging to hosting providers and datacenters, often associated with bots rather than real customers.
Geoblocking
Access ControlRestricting access to your website based on the visitor's geographic location.
Related Security Threats
Bot Attacks: Automated Threats to Your Shopify Store
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Content Scraping: When Bots Steal Your Store
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