You bought a residential proxy service last month. It worked for two hours. Then every request returned a 403 error. You contacted support, and they said the IP was “flagged by the target site.” Now you are stuck with a prepaid plan you cannot use.
This happens more often than providers admit. The difference between a proxy that works and one that gets blocked often comes down to what you check before you buy.
Use this residential proxy services checklist to evaluate any provider in under ten minutes. It covers IP quality, technical controls, pricing traps, and task fit.
Step 1: Verify the IP is residential, not datacenter
Some providers sell datacenter IPs labeled as “premium” or “private.” Run a simple check on any trial IP.
- Go to whatismyipaddress.com.
- Look at the ISP field. If it shows “Amazon Web Services,” “DigitalOcean,” “Google Cloud,” or “Hetzner,” it is a datacenter proxy.
- A real residential proxy should show a recognizable ISP like Comcast, Verizon, Deutsche Telekom, or Telstra.
If the provider refuses to give you a trial IP, consider that a red flag.
Step 2: Check the proxy pool size and location granularity
A pool of 100,000 IPs sounds impressive, but ask what percentage are active. Many providers count IPs that have not been online in months.
For most scraping tasks, you need at least 1 million active IPs to avoid pattern detection. For geotargeting, verify you can select specific cities or even ASNs.
Some providers let you filter by carrier type (mobile vs. desktop). This matters if your target site treats mobile and desktop traffic differently.
Step 3: Test rotation speed and sticky session limits
Two questions to ask:
- Can you set rotation to every request, every 5 minutes, or every hour?
- How long do sticky sessions last? Some cut you off after 10 minutes. Others allow up to 30 minutes.
If you are logging into accounts on a platform like Reddit or Mercari, you need sticky sessions of at least 15 minutes. If you are scraping public data, rotate every request to reduce fingerprinting risk.
Step 4: Run a blacklist check before you scale
Pick three trial IPs. Test each against the target site you intend to use.
- Visit the target site and try to complete a key action: log in, search, or submit a form.
- Check if the site shows a CAPTCHA, rate-limit page, or block message.
- Repeat the test from a clean browser session to rule out cookie issues.
If one IP gets blocked immediately, the pool might contain many flagged IPs. A provider that recycles blocked IPs is not worth your money.
Step 5: Compare proxy pricing models side by side
Do not compare only the headline price per GB. Compare what you actually get.
| Provider A | Provider B |
|---|---|
| $8/GB | $12/GB |
| 1M IP pool | 5M IP pool |
| No sticky sessions | 30-min sticky sessions |
| City-level targeting only | ASN + carrier targeting |
| 10 concurrent connections | Unlimited concurrent connections |
The cheap proxy often costs more in failed requests and wasted time. Calculate cost per successful request, not cost per GB.
Step 6: Confirm the provider supports your specific task
A proxy that works for scraping product prices may fail for managing social media accounts.
- For proxy for scraping: Look for high rotation speed, large IP pool, and support for concurrent connections.
- For proxy for Reddit: Sticky sessions and clean residential IPs are critical. Reddit detects datacenter IPs quickly.
- For general browsing: Any decent residential proxy will work, but check for bandwidth caps.
Our pick for residential proxies handles both scraping and account management scenarios well.
Step 7: Read the fine print on bandwidth and concurrent connections
Some providers cap bandwidth at 100 GB per month and charge overage fees. Others limit how many simultaneous requests you can make.
If you plan to run multiple scripts or browsers, confirm the concurrent connection limit. A provider that allows 50 concurrent connections is very different from one that allows 5.
Also check if bandwidth resets monthly or rolls over. Some providers expire your data on a billing cycle, which can waste unused capacity.
Common mistakes that kill your proxy ROI
- Testing only one IP. If you test only one, you miss the variability in the pool.
- Ignoring rotation control. Some providers rotate your IP every request with no way to change it.
- Buying the cheapest plan. Low cost often means shared IPs that are already blacklisted.
- Not reading the ToS. Some providers explicitly ban scraping on certain sites.
Mini scenario: The Reddit researcher who tested after buying
Maria needed to collect public posts from 50 subreddits for a market study. She bought a residential proxy service with 2M IPs and a low price per GB. On the first day, she ran a script that made one request every 5 seconds. Within 3 hours, Reddit blocked her IP.
She tested the proxy on a generic site like example.com where it worked fine. She never tested it on Reddit itself. When she finally tested, she found that 40% of the IPs in the pool were already flagged.
If she had run the blacklist check from Step 4 on Reddit first, she would have caught this before scaling.
FAQ
Q: What should I check first when comparing residential proxy services checklist?
A: Start with the real use case, pricing, setup difficulty, limits, support quality, and whether the option matches your workflow instead of choosing only by brand name.
Q: Is residential proxy services checklist enough on its own?
A: Usually no. It should be evaluated together with your process, budget, risk level, and the other tools or accounts involved in the workflow.
Q: How do I avoid choosing the wrong option?
A: Use a short checklist, test on a small use case first, read the refund policy, and avoid tools or services that make unrealistic promises.
