One IP · multiple datacenters · automatic routing
Anycast IP
Multi-Region Failover
A single IP address, announced simultaneously from multiple Hoststack datacenter locations. Visitor traffic automatically routes to the nearest, healthiest location — improving latency and giving you automatic failover if one location goes down. From ₹449/month per anycast IP.
Anycast IP is an add-on to an existing service — reach out to attach it to your setup.
In plain language
One address, announced from everywhere at once
Normal — Unicast IP
Lives in one place
A regular ("unicast") IP address is announced from a single location. Every visitor, no matter where they are in the world, connects to that one server. If that location goes down or gets far away from a visitor, they feel it as slow load times or an outage.
Anycast IP
Lives everywhere at once
The same IP address is announced from multiple datacenters simultaneously. Internet routing (BGP) automatically sends each visitor to whichever announcing location is closest and healthy — without you configuring per-visitor routing logic yourself.
Who this is for
When one location isn't resilient enough
DNS server operators
Running your own authoritative DNS? Anycast is the standard approach for DNS resilience — it's how most of the world's root and TLD nameservers achieve global redundancy.
Multi-region failover, simply
Businesses that need failover across regions without standing up and maintaining their own load balancer infrastructure and health-check logic.
Latency-sensitive apps
Applications with users spread across multiple regions — India, APAC, Europe — that want every visitor hitting the nearest node automatically, without manual GeoDNS rules.
How it's different
Anycast vs. CDN vs. load balancer
These solve related but different problems, and often get used together rather than as substitutes for each other.
| Technology | Operates at | What it does |
|---|---|---|
Anycast IP |
Network / IP routing layer | Automatically directs each visitor to the nearest healthy location announcing the same IP. Works below the application layer — it doesn't know or care what's being served. |
CDN |
Content / caching layer | Caches static content (images, JS, CSS, video) at edge locations closer to visitors. Doesn't inherently provide failover for dynamic, uncacheable requests. |
Load balancer |
Within one location | Distributes traffic across multiple servers inside a single datacenter or region. Doesn't route visitors to a different region on its own. |
In practice, many setups use all three together: anycast to get visitors to the nearest region, a load balancer to spread traffic within that region, and a CDN to cache static assets at the edge. Anycast doesn't replace the need for a CDN if you're serving heavy static content — it solves the "which region" problem, not the "cache my assets" problem.
Pricing
Simple per-IP add-on pricing
Anycast IPv4
₹449/mo
Starting from, per additional anycast IP. Announced from all active Hoststack locations by default.
- Announced from Mumbai, Delhi, Singapore & Frankfurt
- Automatic failover on location outage
- Works alongside your existing hosting
- IPv6 anycast available on request
Price in INR/month, excluding GST. Anycast IP is an add-on and requires an existing service to attach to.
Works alongside
Related infrastructure
Global Network
See every Hoststack datacenter location that your anycast IP can be announced from.
DDoS Protection
Anycast also spreads volumetric attack traffic across locations, working well alongside DDoS mitigation.
Dedicated VDS
Run your DNS server or app on dedicated cores, then front it with an anycast IP.
FAQ