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jkluv000 4 days ago in Crawlera 0

I am using the default sample script provided on the site https://doc.scrapinghub.com/crawlera.html#php

When I use the default, my dashboard isnt show I'm even making it to crawlera. There are no errors, there is nothing displayed. Any idea how to troubleshoot?


Cert is in the same directory as PHP script


$ch = curl_init();

$url = 'https://www.google.com/';
$proxy = 'proxy.crawlera.com:8010';
$proxy_auth = '239ec2d8dd334cfeb7b7361b00830f40:';

curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_PROXY, $proxy);
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxy_auth);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
curl_setopt($ch, CURLOPT_CAINFO, 'crawlera-ca.crt');

$scraped_page = curl_exec($ch);
echo $scraped_page;

uday.kumar.kakani 5 days ago in Crawlera • updated by Nguyễn Hoàng 7 hours ago 1


We have a Crawlera account with C10 Plan. We have renewed billing period for this account. Today I am facing performance issue for processing each request it is taking more than 2 minutes also getting Time Out Exception. Before April 20th this was working fine without any issues. Today I am facing performance issue. Before April 20th I was able to process 100 request within 45 mins. Today I am able to process only 35 requests within 45 mins. Please let me know is there any changes that is required after renewed billing period. Most of Crawlera request are failing.


Ganesh Nayak K

csmik.cs 6 days ago in Crawlera • updated by Pablo Vaz (Support Engineer) 5 days ago 2

Hi guys,

I am trying to crawl a website using Crawlera that requires the presence of "Connection: keep-alive" in the header.

Is there any way to make Crawlera compatible with keep-alive connections? I tried using sessions but it didn't seem to help.


csmik.cs 5 days ago

My bad, it actually seems like working, but I'm getting some "Cache-Control: max-age=259200" header entries sometimes rather than "Connection: keep-alive". Probably normal behavior.


GinVlad 1 week ago in Crawlera 0

Hello, i am running crawler job, but it can not receive response data after request >40.

I run my code in localhost, and it work OK.

Under review
Aleksandr Kurbatov 1 week ago in Crawlera • updated 1 week ago 2

Now any request to site returns 503 error "Website crawl ban" or "Timeout from upstream server".

My plan is C50.


g4s.evry 2 weeks ago in Crawlera • updated by Thriveni Patil (Support Engineer) 2 weeks ago 1


I was able to access below Url. Today I am unable to access this Url.


It says 404 Not found.



We have moved to new Interface, you can find the Crawlera KB articles in https://helpdesk.scrapinghub.com/solution/folders/22000131039 .


Thriveni Patil

Regan 3 weeks ago in Crawlera • updated by Nestor Toledo Koplin (Support Engineer) 5 days ago 1

I get the following error when trying to access an ssl website through the proxy in C#: The remote server returned an error: (407) Proxy Authentication Required.

I have installed the certificate and tried the two following code methods below:


var key = _scrapingApiKey;
var myProxy = new WebProxy("http://proxy.crawlera.com:8010");

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

vvar encodedApiKey = Base64Encode(key);
request.Headers.Add("Proxy-Authorization", "Basic " + encodedApiKey);

request.Proxy = myProxy;
request.PreAuthenticate = true;

WebResponse response = request.GetResponse();


var myProxy = new WebProxy("http://proxy.crawlera.com:8010");

myProxy.Credentials = new NetworkCredential(_scrapingApiKey, "");

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);

request.Proxy = myProxy;

request.PreAuthenticate = true;

WebResponse response = request.GetResponse();

What is the correct way to make the proxy work when accessing SSL websites?



The top code should work, but make sure to include the ":" after the APIKey.

Mani Zia 4 weeks ago in Crawlera • updated by Pablo Vaz (Support Engineer) 4 weeks ago 1

Hi All,

please help me out, i am trying to crawl the site with the given link : https://en-ae.wadi.com/home_entertainment-televisions/?ref=navigation
but scrapy (python) is unable to crawl it. i also used classes

import scrapy

from selenium import webdriverfrom scrapy.http

import TextResponse

but still it is returning only null in one line, nothing else. looking forward to your kind response.


Regards zia.


Hi Mani!

We can't provide Scrapy assistance. But let me suggest you other channels to ask:

1. StackOverflow - Scrapy

There's a vast community of Scrapy developers and users contributing actively there.

2. Github - Scrapy


If your projects require urgent attention, please share with us your needs through:


To receive our sales assistance if considering to hire our professional services.

Best luck with your project!


Nayak 4 weeks ago in Crawlera 0


I want to make a webrequest for Google site using Crawlera Proxy along with Session API after integration, I observed that few times we are unable to get session id.

Below code shows webrequest for google

C# Code
private static void GetResponse()
ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12;
ServicePointManager.ServerCertificateValidationCallback += (sender, certificate, chain, sslPolicyErrors) => true;
//Proxy API Call
var myProxy = new WebProxy("http://proxy.crawlera.com:8010");
myProxy.Credentials = new NetworkCredential("< C10 plan API key >", "");
// Session API Call

HttpWebRequest sessionRequest = (HttpWebRequest)WebRequest.Create("http://proxy.crawlera.com:8010/sessions");
sessionRequest.Credentials = new NetworkCredential("< C10Plan API key >", "");
sessionRequest.Method = "POST";
HttpWebResponse sessionResponse = (HttpWebResponse)sessionRequest.GetResponse();
StreamReader srSession = new StreamReader(sessionResponse.GetResponseStream());
string sessionId = srSession.ReadToEnd();

// Google Request
string searchResults = "http://google.com/search?q=Ganesh Nayak K&num=100";
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(searchResults);
request.Proxy = myProxy;
request.PreAuthenticate = true;
request.Headers.Add("x-crawlera-use-https", "1");
request.Headers.Add("X-Crawlera-Session", sessionId);
request.ServerCertificateValidationCallback += (sender, certificate, chain, sslPolicyErrors) => true;

HttpWebResponse response = (HttpWebResponse)request.GetResponse(); // To get the response from server it is taking lot of time

Stream resStream = response.GetResponseStream();
StreamReader sr = new StreamReader(resStream);

If we try to implement same code without session we are getting response in a quicker way and able to process the request more faster.

Without session I have processed more number of requests but few times I got below exception

--> Unable to connect to the remote server à A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond

Ganesh Nayak K
Under review
Chris Fankhauser 1 month ago in Crawlera • updated by Pablo Vaz (Support Engineer) 4 weeks ago 1

Currently, I have several wide-open API keys which I use on our production servers.

It would be very beneficial to be able to use a restricted (to x requests per day, limited by IP address(es), etc.) development-only API key for development, which could be shared more widely than the production keys.

Is this possible to set up? If not, is it functionality which seems reasonable to implement?


Hi Chris, not sure to understand correctly, but the idea behind the different API keys for Crawlera is that you can set up different Crawlera accounts with different regions for example as shown in:


You can also share your needs to evaluate for our engineers if it's possible to implement on an Enterprise account project. If interested, please share all details possible through: https://scrapinghub.com/quote.

Thanks Chris for always provide good questions and ideas helping us to provide a better service.

Best regards,


FHERTZ 1 month ago in Crawlera • updated by Rashmi Vasudevan (Support Engineer) 1 month ago 1


We need to crawl NL website that have restricted to Netherland ips,

When we test we have the message : "No available proxies"

It mean that crawlera don't have Netherland ip address ?




We do not have Netherland proxies to add at the moment.

Apologies for the inconvenience caused.


Waiting for Customer
DPr 1 month ago in Crawlera • updated by Nestor Toledo Koplin (Support Engineer) 4 weeks ago 1


I am using Crawlera. I have tested it making requests to my own web. In my HTTP Log, I see the IP's from crawlera instead of mine. That's ok, however, Google Analytics says that these visits are from my city and not from the different countries of the IPs of Crawlera.

Is it normal? Anyone knows what could be the problem?

Thank you,


ganesh.nayak 1 month ago in Crawlera • updated by Nayak 4 weeks ago 2


I have integrated my application with Crawlera using C#, when I make Https request I got exception (407) Proxy Authentication Required. I have installed Cirtificates also sending request through certificates.

If I try sending Http using 'x-crawlera-use-https' request header it is working fine, but as per document this is Deprecated. Please let me know how to make Https request without header.

I tried same code as mentioned in the document still it is throwing exceptions

<strong>using</strong> <span class="nn">System.IO</span><span class="p">;
using <span class="nn">System</span><span class="p">;</span></span>
<strong>using</strong> <span class="nn">System.Net</span><span class="p">;</span>

<strong>namespace</strong> <span class="nn">ProxyRequest</span>
<span class="p">{</span>
    <strong>class</strong> <strong>MainClass</strong>
    <span class="p">{</span>
        <strong>public</strong> <strong>static</strong> <strong>void</strong> <strong>Main</strong> <span class="p">(</span><strong>string</strong><span class="p">[]</span> <span class="n">args</span><span class="p">)</span>
        <span class="p">{</span>
            <strong>var</strong> <span class="n">myProxy</span> <span class="p">=</span> <strong>new</strong> <span class="n">WebProxy</span><span class="p">(</span><span class="s">"http://proxy.crawlera.com:8010"</span><span class="p">);</span>
            <span class="n">myProxy</span><span class="p">.</span><span class="n">Credentials</span> <span class="p">=</span> <strong>new</strong> <span class="n">NetworkCredential</span><span class="p">(</span><span class="s">"<API KEY>"</span><span class="p">,</span> <span class="s">""</span><span class="p">);</span>

            <span class="n">HttpWebRequest</span> <span class="n">request</span> <span class="p">=</span> <span class="p">(</span><span class="n">HttpWebRequest</span><span class="p">)</span><span class="n">WebRequest</span><span class="p">.</span><span class="n">Create</span><span class="p">(</span><span class="s">"https://twitter.com"</span><span class="p">);</span>
            <span class="n">request</span><span class="p">.</span><span class="n">Proxy</span> <span class="p">=</span> <span class="n">myProxy</span><span class="p">;</span>
            <span class="n">request</span><span class="p">.</span><span class="n">PreAuthenticate</span> <span class="p">=</span> <strong>true</strong><span class="p">;</span>

            <span class="n">WebResponse</span> <span class="n">response</span> <span class="p">=</span> <span class="n">request</span><span class="p">.</span><span class="n">GetResponse</span><span class="p">();</span>
            <span class="n">Console</span><span class="p">.</span><span class="n">WriteLine</span><span class="p">(</span><span class="s">"Response Status: "</span> 
                <span class="p">+</span> <span class="p">((</span><span class="n">HttpWebResponse</span><span class="p">)</span><span class="n">response</span><span class="p">).</span><span class="n">StatusDescription</span><span class="p">);</span>
            <span class="n">Console</span><span class="p">.</span><span class="n">WriteLine</span><span class="p">(</span><span class="s">"\nResponse Headers:\n"</span> 
                <span class="p">+</span> <span class="p">((</span><span class="n">HttpWebResponse</span><span class="p">)</span><span class="n">response</span><span class="p">).</span><span class="n">Headers</span><span class="p">);</span>

            <span class="n">Stream</span> <span class="n">dataStream</span> <span class="p">=</span> <span class="n">response</span><span class="p">.</span><span class="n">GetResponseStream</span><span class="p">();</span>
            <strong>var</strong> <span class="n">reader</span> <span class="p">=</span> <strong>new</strong> <span class="n">StreamReader</span><span class="p">(</span><span class="n">dataStream</span><span class="p">);</span>
            <strong>string</strong> <span class="n">responseFromServer</span> <span class="p">=</span> <span class="n">reader</span><span class="p">.</span><span class="n">ReadToEnd</span><span class="p">();</span>
            <span class="n">Console</span><span class="p">.</span><span class="n">WriteLine</span><span class="p">(</span><span class="s">"Response Body:\n"</span> <span class="p">+</span> <span class="n">responseFromServer</span><span class="p">);</span>
            <span class="n">reader</span><span class="p">.</span><span class="n">Close</span><span class="p">();</span>

            <span class="n">response</span><span class="p">.</span><span class="n">Close</span><span class="p">();</span>
        <span class="p">}</span>
    <span class="p">}</span>
<span class="p">}</span>


Ganesh Nayak K


Hi Ganesh,

NetworkCredential will not work in this case. Just set your api key as a string.

In your request header do something like:

var encodedApiKey = Base64Encode(apiKey);

request.Headers.Add("Proxy-Authorization", "Basic " + encodedApiKey);

request.Proxy = proxy;

request.PreAuthenticate = true;

Also keep the : appended to your api key for this to work

Waiting for Customer
jcdeesign 1 month ago in Crawlera • updated by Nestor Toledo Koplin (Support Engineer) 1 month ago 3


When i use curl how example all works

if i try use Phantom js in selenium i recive 407

service_args = [

driver = webdriver.PhantomJS(executable_path=settings.PHANTOMJS, desired_capabilities=dcap,service_args=service_args)

i recive


in log


key with curl work

jarek 1 month ago in Crawlera 0

Hello, I'm using the phantomjs from amir20: https://github.com/amir20/phantomjs-node

and from what I read I could enable a session if I pass true on my : currentPage.on('onResourceRequested', true, onResourceRequested);

and now I'm not getting the error: "networkRequest.setHeader is not a function" anymore. In my function:

function onResourceRequested(requestData, networkRequest) {

requestCounter += 1;
//yellow color for the requests:
if (printLogs) console.log('\x1b[33m%s\x1b[0m: ', '> ' + requestData.id + ' - ' + requestData.url);
if (!this.crawleraSessionId) {
networkRequest.setHeader('X-Crawlera-Session', 'create');


BUT the onResourceReceived now is not working because it's not returning the html data and before typing true in the onResourceRequested woked.

Any advice?