Real estate data analysts, property investment researchers, market trend forecasters, and automated valuation specialists utilize Zillow proxies. Roundproxies enables comprehensive extraction of property listings, historical pricing data, and neighborhood analytics from America's largest real estate marketplace without account restrictions or rate limiting.
Zillow's aggressive bot protection and sophisticated traffic analysis systems immediately block free proxy networks. Roundproxies provides premium residential IPs that appear as genuine homebuyers and real estate professionals, essential for accessing detailed listing information, Zestimate histories, and market trend data without triggering CAPTCHA loops or IP bans.
Optimized for large-scale real estate data collection, our Zillow proxy network employs intelligent request pacing that mimics human browsing patterns while maximizing throughput. Distributed across US residential ISPs, our infrastructure provides authentic geographic presence essential for accessing accurate local market data and region-specific listing details.
Residential proxies deliver the authenticity required for accessing Zillow's full listing details and historical data—critical since Zillow personalizes results based on browsing history and location. Mobile IPs capture app-specific features and mobile-exclusive listings. Datacenter proxies work effectively for aggregate market statistics and public-facing data where stealth is less critical.
Zillow is US-only, blocks datacenter ranges without exception and protects its listings with one of the strictest bot defences in real estate. That narrows the setup to one shape: US residential addresses, rotated at a low rate per address, with a real browser fingerprint. This page is about getting that shape right rather than finding an alternative to it.
| Proxy type | Verdict | Why |
|---|---|---|
| Datacenter | Blocked outright | Zillow's defence refuses datacenter ranges at the first request. There is no rate at which it works. |
| Rotating residential (US) | Listing collection | Listings, price history, Zestimates and agent pages from US residential addresses, rotated to keep each under Zillow's per-address budget. The whole workable option. |
| Sticky residential (US) | Agent and Premier accounts | One household IP per agent account, held for the session. For Zillow Premier Agent and any logged-in workflow. |
| ISP (static residential) | Slow polling only | A static US address gets one budget and then sits challenged. Fine for watching a few listings, useless for collection. |
| Non-US addresses of any type | Geo-blocked | Zillow restricts access from outside the US. Every address in the setup, whatever its type, needs to be American. |
Zillow's defence refuses datacenter ranges at the first request. There is no rate at which it works.
Listings, price history, Zestimates and agent pages from US residential addresses, rotated to keep each under Zillow's per-address budget. The whole workable option.
One household IP per agent account, held for the session. For Zillow Premier Agent and any logged-in workflow.
A static US address gets one budget and then sits challenged. Fine for watching a few listings, useless for collection.
Zillow restricts access from outside the US. Every address in the setup, whatever its type, needs to be American.
US rotating residential for reading, US sticky residential for accounts. Everything else fails at the door.
Geo-restriction, a datacenter block, and a tight per-address budget backed by a press-and-hold challenge.
Non-US traffic and datacenter ranges are refused before the page renders. This is not a challenge you can pass; it is a refusal.
Proxy setup: US residential addresses only.
Each residential address gets a modest page budget before the press-and-hold challenge appears, and it recovers slowly. Search result pages spend the budget faster than listing pages.
Proxy setup: Enough rotating addresses that none is asked to serve more than its budget, with a realistic browser fingerprint on every request.
Premier Agent and agent profile logins are scored on address consistency, and shared addresses between agent accounts draw review.
Proxy setup: One sticky US residential address per agent account.
Every address in the pool must be a US residential one. Country targeting on our residential pool set to US is the first and only geographic rule.
Divide your hourly request rate by the pages an address can serve before a challenge, and that is the number of distinct addresses you need rotating.
Zillow's defence scores fingerprint and address together. A residential IP with a bare HTTP client is challenged as fast as a datacenter one.
Search pages are budgeted harder. Collect listing IDs sparingly from search, then read listing pages, which cost less.
A press-and-hold challenge on an address means it is spent. Drop it from rotation and let the pool carry on.
One sticky residential per account, never on the collection pool.
A US rotating pool sized on address diversity, plus one sticky address per agent account.
| What you are running | Proxies you need | Notes |
|---|---|---|
| Watching a few dozen listings | Rotating pool | A couple of GB of US rotating residential a month at daily polling. |
| Metro-scale listing collection | Larger rotating pool | Tens of GB monthly. Address diversity is the constraint, so prefer a pool with more distinct IPs over more bandwidth. |
| Nationwide price history | Large rotating pool | Size on listings times pages times frequency; expect the per-address budget to be the limiting factor. |
| Agent team, 5 accounts | 5 sticky residential | One US household address per agent account. |
Rotating pool
A couple of GB of US rotating residential a month at daily polling.
Larger rotating pool
Tens of GB monthly. Address diversity is the constraint, so prefer a pool with more distinct IPs over more bandwidth.
Large rotating pool
Size on listings times pages times frequency; expect the per-address budget to be the limiting factor.
5 sticky residential
One US household address per agent account.
Any datacenter range, at any rate.
Any non-US address.
A residential IP with an automated client fingerprint.
Draining one address past its budget, especially on search pages.
Retrying a challenged address.
Agent accounts on the collection pool.
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See what our customers have to say about our services. Trusted by thousands of businesses worldwide.
tbh, I had a very good run with roundproxies. the support is top tier and the quality of the proxies ahve been premium since day one. Have used their ISP and Residential proxies and love the granuliar targeting I can do. I would recommend roundproxies.
The proxy quality and success rate is what stands out most. The IPs are clean, connections are fast, and I rarely hit blocks even on tougher targets. The dashboard is dead simple, I was up and running in minutes, and whenever I had a setup question, support answered within minutes and actually knew what they were talking about. For the price, especially the datacenter proxies with unlimited bandwidth, the value is hard to beat.
I purchased proxies today the first time in my life, not knew where to start. Marius responded within minutes and helped me understand everything right away. Very fast and helpful support.
The Datacenter Proxies arrived and missing an item. I immediately contacted customer service who sent me another Datacenters for and added one week for free on top.
Extract comprehensive property data across metro areas, track price changes over time, and analyze days-on-market patterns. Aggregate neighborhood-level statistics, school rating impacts on property values, and seasonal market fluctuations. Build predictive models for property appreciation, rental yield potential, and investment opportunity identification based on historical Zillow data spanning years.
Monitor Zillow Premier Agent advertising effectiveness, verify listing exposure across search results, and audit Featured Listing placements. Track how paid promotions affect property visibility and click-through rates. Essential for real estate brokerages optimizing Zillow advertising spend and agents measuring ROI on premium placement investments.
Access Zillow's full suite of analytics tools including rental Zestimates, detailed tax histories, and neighborhood boundary data. Critical for investment analysts requiring comprehensive due diligence information and real estate professionals building market reports. Navigate Zillow's agent platform features and verify listing accuracy across the consumer-facing portal.
Cost
Success Rate
Setup Time
Support Quality
Premium Providers
>$500/month minimum
High (95%+)
Complex setup
Budget Providers
$50-200/month
Variable (70-85%)
Quick but limited docs
From $3/month
99.9% uptime
1 min setup
24/7 live support
Cost
>$500/month minimum
Success Rate
High (95%+)
Setup Time
Complex setup
Support Quality
Cost
$50-200/month
Success Rate
Variable (70-85%)
Setup Time
Quick but limited docs
Support Quality
Cost
From $3/month
Success Rate
99.9% uptime
Setup Time
1 min setup
Support Quality
24/7 live support
Not from a non-US address. Zillow restricts access from outside the United States and refuses datacenter ranges without exception; neither is a challenge you can pass, it is a refusal. Every address in the setup, whatever its type, needs to be a US residential one, which is a single country-targeting rule on our pool.
Because that address has spent its budget, or its fingerprint looks automated. Each residential address gets a modest page budget before the challenge appears, search pages spend it faster than listing pages, and a bare HTTP client is challenged as fast as a datacenter IP. Pair each address with a real browser profile and keep the rate low.
Divide your hourly request rate by the pages an address can serve before a challenge, and that is the number of distinct US residential addresses that need to be rotating. The per-address budget, not bandwidth, is the constraint, so prefer a pool with more distinct IPs over more GB. Metro-scale collection is tens of GB a month.
Listing pages, as far as possible. Search result pages are budgeted harder and spend an address faster. Collect listing IDs sparingly from search, then read the listing pages themselves, which cost less budget per record. It is the single biggest efficiency gain on Zillow.
One sticky US residential address per agent account, held for the session and never on the collection pool. Agent logins are scored on address consistency, and shared addresses between agent accounts draw review. A static US address that only one account has used is the cleanest profile.
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