Dedicated vs Shared Proxy: What Really Changes

Dedicated or shared: the question comes up as soon as you compare proxy offers. Yet the difference goes well beyond price: it affects the reputation of the address, its speed and what websites see of you. Here is what really changes, and how to check that an IP sold as dedicated actually is.

Dedicated vs shared: what are we talking about?

It all comes down to one question: who else is using the proxy's IP address?

• Dedicated proxy (also called "private"): the IP is assigned to a single customer for the whole rental period. Nobody else uses it at the same time as you.
• Shared proxy: the same IP is sold to several customers, who use it at the same time, each for their own purposes.
• Semi-dedicated proxy: an IP shared among a small number of customers. It is still a shared proxy, just with fewer neighbors.

Do not confuse dedicated with static: static means the address does not change, dedicated means it is yours alone. An IP can be fixed and shared, which is common with entry-level datacenter proxies.

Dedicated does not mean brand new

The term describes exclusivity during your rental, not the address's past: a dedicated IP may have been used by another customer before you. What matters is that it gets checked before being put back on sale. Proxy families are compared in our guide ISP vs datacenter vs residential vs mobile proxies: which to choose?

The risks of a shared IP

Sharing an IP means sharing everything attached to it.

• Inherited reputation: websites judge an address by its past. If another user sends too many requests or trips anti-abuse systems, the address gets flagged, and you bear the consequences: captchas, extra verification, refused logins.
• An IP already blocked on some sites: a single abusive use is enough for the address to be banned from a platform or added to public blocklists. You may receive an IP that your target site already rejects, before you have even sent your first request.
• Shared bandwidth: throughput, and often the number of simultaneous connections, is split between users. Sites that rate-limit per address count everyone's requests together: you can hit their ceiling with modest traffic.
• No control over the history: you do not know who uses the address or what for. When a block happens, you cannot tell whether it came from you or from a neighbor, so you cannot fix it. And accounts unrelated to yours go out through the same address: a platform may link them together.

Which one for your use case?

When a shared proxy can be enough

A shared proxy does the job when a block costs you nothing:

• one-off tests: validating a configuration or a script, seeing how a page displays from another country;
• low-stakes uses: occasionally browsing public pages, with no logged-in account and no sensitive data.

The test is simple: if the IP gets blocked tomorrow, what do you lose? If the answer is "nothing", a shared proxy will do.

Why dedicated for serious work

As soon as the stakes rise, dedicated is the way to go.

• One consistent IP per account or project: each account always logs in from the same address, in its own country, like an ordinary user. Our guide to proxies for social media accounts explains the method.
• A history you control: the IP's reputation depends on you alone. A reasonable pace and respect for the platforms' terms of service keep it clean; if a block happens, you know the cause.
• Predictable performance: no neighbor eats into your bandwidth, and per-IP limits only count your own requests.
• An address you can allowlist: a dedicated IP can be added to the allowlist of an API or a firewall. Doing the same with a shared IP would open access to all of its other users.

Rotating IPs: shared by nature

With rotating proxies, the "dedicated or shared?" question partly loses its meaning.

• Rotating residential: the network rotates addresses from home connections across all of its customers. The IP you get may have been used by someone else a few minutes earlier. Sticky sessions keep it for a while, without reserving it for you.
• Mobile 4G: even on a line reserved for a single customer, the carrier routes many subscribers through the same public address (this is CGNAT). Platforms know this and are generally more cautious before blocking a mobile IP.

Here, sharing is a feature, not a flaw. The right questions become: is the network well maintained, and does rotation suit your use? It helps data collection without a logged-in account, but works against an account that needs to keep its address. For a stable identity, a fixed dedicated IP remains the benchmark. Mobile is covered in our guide to mobile 4G proxies, rotating or sticky IP.

How to check that an IP is really dedicated

No test alone can prove that an IP is used by you only: two customers on a shared IP see the same exit address. Tests spot the warning signs; exclusivity rests on the seller's commitment.

Questions to ask the seller

• Is the IP assigned to a single customer for the entire rental, with no parallel resale?
• How are the addresses tested before sale (ports, ranges, blocklists)?
• When an IP comes back from a rental, is it checked before being resold?
• What happens if the IP you receive is already blocked on a site you target?

Be wary of an offer that stays vague on these points, or of a "dedicated" proxy sold at a shared price.

Test the exit IP

Run the proxy through our proxy checker: it shows the exit IP, country, latency and anonymity level. Then set it up in your browser and open What is my IP to see the address websites see, along with its ISP and ASN. That IP should stay the same from one test to the next and from one day to the next, with the country and network you paid for: an address that keeps changing points to a rotating network.

Check its reputation

With the exit IP in hand, look it up in public blocklists (DNSBL) and IP reputation databases. Then try it on your target sites at a normal pace: an address that triggers captchas on the very first visit already has a past. Our guide on how to test a proxy walks through the full method.

At Airproxy: 1 IP = 1 customer

Airproxy only sells dedicated ISP proxies, in France, Spain and Europe (EU offer): each IP is assigned to a single customer and is never shared during the rental. This type of address is explained in our guide what is an ISP proxy?

• Static IPs: the same address for the whole rental.
• IPs checked before sale: ports tested, clean ranges, blacklisted addresses removed.
• Two protocols: HTTP(S) and SOCKS5 on the same access, with a username and password.
• A renewable 30-day rental, delivered instantly to your customer area.

Current pricing is on the offers page.