What Is an IPv6 Proxy and Which Sites and Jobs Is It For?

An IPv6 proxy forwards your requests to the target site from a 128-bit IPv6 address. Because the IPv6 address space is so large, many exit addresses can be offered at low cost. In return, an IPv6 proxy can only reach targets that publish an IPv6 address; many sites still serve over IPv4 only.

That is why an IPv6 proxy is not an IPv4 replacement for every job. If your targets support IPv6, it is an economical option for high-volume work; if they do not, the request never arrives. Confirm your targets' IPv6 support before you buy.

WeProxy offers Rotating IPv6, Sticky IPv6, Static Datacenter IPv6 and Static Residential IPv6. For targets that require IPv4, Rotating Datacenter IPv4 is the IPv4 counterpart for the same kind of work. Packages and current prices are in the package table on this page. For a technical comparison of the two protocols, see our IPv4 vs IPv6 guide.

What is an IPv6 proxy and how does it work?

Two IP versions are used side by side on the internet. IPv4 addresses are 32 bits long and limited to about 4.3 billion addresses. IPv6 addresses are 128 bits long and written as hexadecimal groups such as 2001:db8::1. A single /64 block assigned to a network already contains 2^64 addresses.

With an IPv6 proxy, your client connects to the proxy and the proxy connects to the target with an IPv6 exit address. The connection between client and proxy can be IPv4; what matters is the address the proxy uses toward the target. The target server sees this IPv6 address as the source of the connection.

A site that supports IPv6 publishes an AAAA record for its domain in DNS. IPv4 addresses live in the A record. If a site has only an A record, a proxy with an IPv6 exit cannot connect to it. Sites with both A and AAAA records are called "dual-stack" and are reachable over both versions.

Which sites does an IPv6 proxy work on?

An IPv6 proxy only works on targets that have an AAAA record and respond over IPv6. Large platforms, search engines, social networks and sites behind large CDNs usually run dual-stack. Small sites, legacy infrastructure, some enterprise systems and many APIs serve over IPv4 only.

Support varies by domain. A site's main domain may support IPv6 while its API or image server does not. If a page loads resources from several domains, the IPv4-only domains will not load through an IPv6 proxy. In browser automation this shows up as partially loaded pages.

So the rule is simple: plan an IPv6 proxy after checking IPv6 support for every domain on your target list. You can check with the IPv6 checker or with the dig command in the test section below. If part of your targets are IPv4-only, that part needs an IPv4 product.

What is the difference between an IPv4 proxy and an IPv6 proxy?

Both proxy types connect with the same protocols (HTTP and SOCKS5); the difference lies in the exit address version, target compatibility and cost model.

In practice many teams use both: IPv6-enabled targets run through an IPv6 proxy and the rest through an IPv4 proxy. For IPv4 options, see our IPv4 proxy page.

Which IPv6 proxy options does WeProxy offer?

The table below compares WeProxy's IPv6 products and Rotating Datacenter IPv4, used for IPv4-only targets. All products offer HTTP and SOCKS5.

Rotating IPv6 comes in monthly, unmetered per-port packages; there is no bandwidth limit, and the only constraint is your own infrastructure's capacity. The IP changes on every request in Datacenter packages and at intervals of at least 120 seconds in Residential packages; the product card states support for up to 1,000 concurrent requests. The product is offered only in the Türkiye location.

Sticky IPv6 keeps the same IPv6 address for the duration you choose, between 1 and 120 minutes. It offers country targeting in the Netherlands, the US, the United Kingdom, Germany and Canada.

Static Datacenter IPv6 gives you dedicated, unchanging IPv6 addresses with unlimited bandwidth. Whitelist management is simple, and it is offered in 19 countries.

Static Residential IPv6 combines residential network quality with a static IPv6 connection. The IP stays fixed for up to 30 days; it is offered in Türkiye and the US.

Rotating Datacenter IPv4 runs the same kind of job over IPv4 when part of your targets are IPv4-only. It offers ASN and city targeting and is billed per GB. All datacenter options are compared on our datacenter proxies page.

Which jobs is an IPv6 proxy good for?

The advantage of an IPv6 proxy is that it lets you use many addresses at low cost on IPv6-enabled targets. The following jobs benefit from that:

• Data collection on large IPv6-enabled sites. If the target is dual-stack, spreading requests across IPv6 addresses moves traffic you would pay for per GB on IPv4 into a monthly per-port package.
• Search engine and SEO tracking. On search engines that support IPv6, ranking and results-page checks can run over IPv6.
• IPv6 reachability tests for your own services. You can verify from different addresses that your site, API or CDN configuration responds correctly over IPv6.
• Integrations that need a fixed IPv6 identity. Static IPv6 addresses are used when the other side needs a permanent address to add to its whitelist.
• Long sessions. In flows that require login, Sticky IPv6 or the static IPv6 products keep the same address for the whole session.

There are also jobs an IPv6 proxy does not suit: if IPv4-only domains dominate your target list, if pages load resources from IPv4-only subdomains, or if the target applies stricter rules to IPv6 traffic than to IPv4, IPv4 products give more predictable results. For the difference between rotating and sticky sessions, see our sticky vs rotating guide.

How do you test whether a target supports IPv6?

The test has two steps: first check the target's AAAA record, then a real request through the proxy.

# 1. Does the target have an IPv6 address?
dig AAAA example.com +short

# 2. Verify the IPv6 exit through the proxy (HOST, PORT, USER, PASSWORD are your dashboard details)
curl -sS -x "http://USER:PASSWORD@HOST:PORT" https://api64.ipify.org

If the first command returns nothing, the target has no IPv6 address and an IPv6 proxy cannot reach that domain. The second command returns the proxy's exit address; on a product with an IPv6 exit, the result should be an IPv6 address containing colons. You can check the IP version of your own connection with the my IP tool and test the proxy end to end with the proxy checker.

If the target page loads resources from several domains, repeat the first step for each domain. Then measure the success rate on a small sample, and compare responses received over IPv6 with the same target's IPv4 responses.

How do you choose an IPv6 proxy?

Decide on targets first, then the session model, and billing last.

1. Confirm your targets support IPv6. Check the AAAA record for every domain. Plan a separate IPv4 product for IPv4-only targets.
2. Pick a session model. Choose Rotating IPv6 for independent requests, Sticky IPv6 for flows that require login, and the static IPv6 products for integrations that need a permanent address.
3. Check the location. Rotating IPv6 is offered only in Türkiye, Sticky IPv6 in five countries, Static Residential IPv6 in Türkiye and the US, and Static Datacenter IPv6 in 19 countries. All countries are listed on the locations page.
4. Match the IP source to the target. On targets that are strict with datacenter addresses, residential IPv6 may fit better; on other targets, datacenter IPv6 is enough.
5. Plan concurrency. The Rotating IPv6 card states support for up to 1,000 concurrent requests. If you need more, plan the number of ports accordingly.
6. Match billing to volume. Unmetered per-port packages suit sustained high traffic; per-IP monthly packages suit a fixed number of addresses.
7. Start small. Measure the success rate on your real targets with a single port or a few IPs, then scale.
8. Follow the rules. Follow the target sites' terms and our Acceptable Use Policy.

A price comparison of the products is on the pricing page; you can complete a package on the order page. Other rotating-IP options are compared on our rotating proxies page.

What should you watch for when using an IPv6 proxy?

Because IPv6 addresses are assigned in blocks, many sites apply rate limits to the address block rather than to a single address. The typical unit is a /64 block; some sites may count larger blocks as one source too. If you send requests from the same block quickly, you can receive 429 responses even though the addresses differ. Adjust your request rate to the target's limits and respect the Retry-After header.

When connections fail, first separate where the error comes from. 407 relates to proxy authentication. A connection that never establishes, or a timeout, can indicate that the target has no IPv6 address. 403 and 429 are the target site's decision. The meaning of each code is explained in our proxy error codes guide.

Pay attention to DNS on the client side as well. If you use SOCKS5, let the proxy resolve the domain with socks5h, so the AAAA record is queried on the proxy side. Local resolution can lead your client to pick an IPv4 address and send it to the IPv6 proxy.

Frequently asked questions

Does an IPv6 proxy work on every site?

No. An IPv6 proxy can only reach domains that publish an AAAA record in DNS and respond over IPv6. Most large platforms run dual-stack, while many small sites, APIs and legacy systems use IPv4 only. Before you buy, check your target domains with the IPv6 checker and plan a separate IPv4 product for IPv4-only targets.

What is the main difference between an IPv6 proxy and an IPv4 proxy?

The difference is the version of the exit address. An IPv4 proxy reaches almost every site, but the address supply is limited. An IPv6 proxy comes from a very large address space and is more economical at high volume, but it only works on IPv6-enabled targets. Both connect over HTTP and SOCKS5. A detailed comparison is in our IPv4 vs IPv6 guide.

How often does the IP change on a rotating IPv6 proxy?

On Rotating IPv6, the IP changes on every request in Datacenter packages and at intervals of at least 120 seconds in Residential packages. The product comes in monthly, unmetered per-port packages with no bandwidth limit, and the product card states support for up to 1,000 concurrent requests. If you need to hold the same address for a longer, controlled period, look at Sticky IPv6, where the session length is selectable between 1 and 120 minutes.

Is there a bandwidth limit on IPv6 proxies?

It depends on the product. According to the site FAQ, IPv6 port packages have no bandwidth limit; the only constraint is your own infrastructure's capacity. Static Datacenter IPv6 also has unlimited bandwidth. Sticky IPv6 comes in period-based or GB-based packages, so check the quota on the package card. Package options are listed in the package table on this page.

Which jobs is an IPv6 proxy not suitable for?

An IPv6 proxy is not suitable when IPv4-only domains dominate your target list, because no connection can be made to those domains. Browser automation where pages load resources from IPv4-only subdomains can also produce incomplete pages. In these cases an IPv4 product such as Rotating Datacenter IPv4 gives more predictable results.

Do IPv6 proxies support SOCKS5?

Yes. Rotating IPv6, Sticky IPv6, Static Datacenter IPv6 and Static Residential IPv6 at WeProxy all offer HTTP and SOCKS5. When you use SOCKS5, choose the socks5h scheme so the domain is resolved on the proxy side and the target's IPv6 address is looked up correctly. For SOCKS5 details, see our SOCKS5 proxies page.