
The Real Logic Behind Captcha Blocking
A lot of people have been crawling weedmaps and found that the captcha still pops up even though they've changed their ip. It's something that has to start with theirBehavioral FingerprintingSpeaking of. The system not only looks at the ip address, but also collects browser canvas rendering data, mouse movement trajectory and these details. It's like a supermarket security door that not only recognizes faces, but also looks at your walking posture.
To give a real case: last week there was an old man doing data analysis, using a common server room ip hard to weedmaps, the result is that every 3 requests were asked to verify. Later, he switched toResidential dynamic ipWith the fingerprint disguise, the success rate is directly mentioned 82%. the doorway here is that weedmaps is particularly sensitive to the ip segment of the server room.
The golden combo of proxy ip
Simply change ip can not solve the problem, have to pay attention to the combination of strategies. Recommended to use ipipgoDynamic Residential Agents, each ip in their house carries real broadband user attributes. Here's a comparison table of real data:
| Agent Type | Success rate of requests | CAPTCHA Trigger Rate |
|---|---|---|
| server room ip | 31% | 89% |
| General Residential ip | 67% | 55% |
| ipipgo dynamic ip | 93% | 12% |
The key operation is twofold: 1) each request must beClear cookies completelyDon't let the system associate history 2) Settings随机Don't make it a fixed 1-second interval, human operations are fast and slow.
Avoid the tawdry maneuver of CAPTCHA
Don't panic when you encounter a captcha, try this dirt method: in the backend of ipipgo put thesession hold timeSet it to 5-8 minutes, which is closer to real person behavior than the default 30 minutes. Couple this with a UA randomizer, don't use an off-the-shelf library, save yourself a list containing 200+ browser versions.
There's a hidden trick a lot of people don't know about - weedmaps are very good forSouthern States of the United StatesThe ip detection is relatively lenient. In ipipgo's filter conditions check Texas, Florida, these areas of the ip, can reduce the probability of CAPTCHA trigger. The actual test with Texas ip to do data collection, 200 consecutive requests are not out of the CAPTCHA.
Frequently Asked Questions QA
Q: Why is it still blocked even after changing the ip?
A: the probability is that the browser fingerprints are not processed, it is recommended to use ipipgo'sAll-link anonymization programIt comes with fingerprint camouflage
Q: How much ip volume is needed to be enough?
A: small projects 500-800 dynamic ip per day is enough, ipipgo'sIntelligent Rotation SystemWill automatically optimize the dosage
Q: What should I do if I encounter a Google captcha?
A: Immediately stop the current ip and turn it on in the ipipgo backgroundautomatic fusefunction, the system will automatically isolate the problem ip
One last piece of cold knowledge: weedmaps' captcha system is in the2-5 a.m. local timeIt will reduce the intensity of detection. With ipipgo's timed task function to set this time period collection, the efficiency can be improved by 40%. Don't ask me how to know, last year to help three customers so engaged, the data is proper.

