Why Proxies Get Blocked and What Your Team Can Change
When requests through a proxy start failing, the first instinct is to blame the proxy. Usually, though, the cause is something the team controls. Sites set rate limits and weigh IP reputation, so most refusals come down to a request rate that is too high, a pool that does not suit the target, or a site's rules not being followed. Each has a fix that is simple to apply and fully responsible.
This guide works through the usual causes one at a time, with the fix for each, so legitimate data collection stays reliable within each site's terms of service and applicable law. Sites set and enforce their own rules; no proxy assures access, and those rules always come first.
We write these guides for e-commerce, marketing and agency teams that pay for proxies by the gigabyte.
Cause 1: Too many requests, too quickly
Request volume causes more refusals than anything else. A run of requests from one IP in a short window resembles a single visitor behaving unusually, and the site's rate limits react. Slow the collection down and spread it out: add randomised delays, set a ceiling on concurrency and use rotation so every IP handles only a few of the requests. That one adjustment clears up most refusals.
Cause 2: A pool that does not suit the target
Before answering, some sites look at the network behind an IP. On lightly defended sources a datacenter IP does the job well, but a protected site trusts it less than a residential IP belonging to a real home connection. Choose the pool to fit the target, step up to Residential Premium for the most difficult cases, and the success rate stays high.
Cause 3: Poor IP reputation or the wrong location
Addresses from networks with a history of abusive traffic start with less trust, and a location that does not suit the content being requested can look out of place too. Keeping pools clean and ethically sourced deals with the first problem; choosing IPs in the right region deals with the second. Each common cause appears in the table next to the fix the team should apply.
| Cause | What the team sees | Responsible fix |
|---|---|---|
| High request rate | Errors start after a busy spell | Slower pace, random delays, rotation |
| Wrong pool | Datacenter IPs refused by a protected site | Residential or premium IPs for that site |
| Low IP reputation | Repeated challenges or refusals | Clean, ethically sourced IPs |
| Geo-mismatch | Content missing or wrong for the market | An IP location that fits the content |
| Site rules | Access limited by the site’s terms | Follow the terms; use official APIs |
Cause 4: The site is enforcing its rules
Some refusals are simply a site applying its terms. A new IP does not exempt anyone from those rules and should never be used to try. For a team, responsible collection comes down to four commitments:
- Collect only publicly available data, within each site's terms of service and robots directives.
- Hold the request rate at a reasonable level, with concurrency to match.
- Use the site's official API or feed when it offers one.
- Treat a restriction as the site's answer, not as something to push against.
On those terms, proxies help a team collect legitimate data reliably and at scale.
Fixing it on your side
Our pools are ethically sourced and run with 99.9% uptime, and every plan supports HTTP/HTTPS and SOCKS5, username/password or IP-whitelist authentication, 55+ countries and instant delivery. If changing pool is the fix, size the new workload on the proxy calculator, check rates on the pricing page and order the type you need. If challenge pages are the main symptom, read our guide to cutting CAPTCHA challenges.
Match the pool to the workflow
Every pool is billed per GB and run from the same dashboard, so one team can keep low-cost volume work and high-trust checks side by side.
High-volume collection from unprotected sites, automation, SEO tools
Market research, ad verification and geo-accurate checks on protected sites
Phone-first platforms, app and mobile ad testing
Hard targets where every failed request is costly
Covering several markets in one report? MIX packages combine multi-country residential traffic in a single order. Agencies buying on behalf of clients can apply for the reseller programme.
Get your team running
Per-GB pricing from $3.50 · 55+ countries · instant delivery · 30-day validity · no traffic logs · 24/7 human support
-
1
Size the job
Pick a proxy type in the proxy calculator and enter the gigabytes you expect to use to see the order total.
-
2
Order and pay
Choose the pool on the proxies page and pay by card through Stripe or in crypto through Cryptomus. Each order is billed per GB and does not renew on its own.
-
3
Share access
Credentials appear in the dashboard as soon as payment clears. Add them to each tool with a login or an IP whitelist, then send one test request before the real job starts.
Questions team leads ask
More playbooks for your team
What Are Proxies? A Primer for Business Teams
What a proxy server does for a business team: how the relay works, the main IP types and their per-GB prices,…
Read the playbook →Ad Verification Proxies: A Playbook for Ad-Ops Teams
How ad-ops teams check placements, creatives and landing pages from residential and mobile IPs per market, wh…
Read the playbook →Web Scraping Proxies: Picking a Pool for Each Data Job
The proxy pool a data team needs for each scraping target: datacenter for open sites, residential for protect…
Read the playbook →Datacenter vs Residential Proxies: Which Should Your Team Buy?
Decide workflow by workflow whether datacenter or residential proxies fit: cost, speed, trust and location ta…
Read the playbook →What Are Residential Proxies? When a Team Needs Home IPs
Residential proxies use real home IPs. Which team workflows need them, how a request travels, how they compar…
Read the playbook →Mobile vs Residential Proxies: Which Fits Your Team's Work?
Mobile proxies use carrier 4G/5G IPs; residential proxies use home broadband. Decide by platform which one yo…
Read the playbook →