![]() You can limit theĪmount of redirects to follow by using the -max-redirs option. See also -location-trusted on how to change this. If a redirect takes curl to aĭifferent host, it won't be able to intercept the user password. Sends its credentials to the initial host. If used together with -i/-include or -I/-head, headers fromĪll requested pages will be shown. Response code), this option will make curl redo the request on the new ![]() To a different location (indicated with a Location: header and a 3XX (HTTP/HTTPS) If the server reports that the requested page has moved (Only the file part of the remote file is used, the path is cut off.) Write output to a local file named like the remote file we get. curl -O -J -L Ī bit of info on these switches from the documentation: -O/-remote-name So try using shellexec ('wget -O - should return the content of the requested page to your PHP script. Edit: You may use - to print everything to stdout instead. It is working on my website successfully.You might have better luck using curl to do this instead of wget, and set it to follow the redirection using the switches -L, -J, and -O. As you mentioned the webpage you are trying to scrape does not work, maybe they implemented some sort of bot-protection preventing exactly what you are trying. Needs a bit of work, but definitely the way to go.ġ00% Working Bot detector. It's from an open source script called. That would be the ideal way to cloak for spiders. ( I am not sure how but this is for sure the best way to track them ) One distinctive feature of most of the bot is that they don't carry any cookie and so no session is attached to them. ( I got many russian ip that has this behaviour on my site ) ![]() $isBot = !$userAgent || preg_match($bot_regex, $userAgent) Īnyway take care that some bots uses browser like user agent to fake their identity $bot_regex = '/BotLink|bingbot|AhrefsBot|ahoy|AlkalineBOT|anthill|appie|arale|araneo|AraybOt|ariadne|arks|ATN_Worldwide|Atomz|bbot|Bjaaland|Ukonline|borg\-bot\/0\.9|boxseabot|bspider|calif|christcrawler|CMC\/0\.01|combine|confuzzledbot|CoolBot|cosmos|Internet Cruiser Robot|cusco|cyberspyder|cydralspider|desertrealm, desert realm|digger|DIIbot|grabber|downloadexpress|DragonBot|dwcp|ecollector|ebiness|elfinbot|esculapio|esther|fastcrawler|FDSE|FELIX IDE|ESI|fido|H�m�h�kki|KIT\-Fireball|fouineur|Freecrawl|gammaSpider|gazz|gcreep|golem|googlebot|griffon|Gromit|gulliver|gulper|hambot|havIndex|hotwired|htdig|iajabot|INGRID\/0\.1|Informant|InfoSpiders|inspectorValet|skymob|SLCrawler\/2\.0|slurp|ESI|snooper|solbot|speedy|spider_monkey|SpiderBot\/1\.0|spiderline|nil|suke|http:\/\/lib$userAgent = empty($_SERVER) ? FALSE : $_SERVER part of the regex comes from prestashop but I added some more bot to it. In this code we check "hostname" which should contain "" or "" at the end of "hostname" which is really important to check exact domain not subdomain. Verify that it is the same as the original accessing IP address from your logs. If you really need to detect GOOGLE engine bots you should never rely on "user_agent" or "IP" address because "user_agent" can be changed and acording to what google said in: Verifying Googlebotġ.Run a reverse DNS lookup on the accessing IP address from your logs, using the host command.Ģ.Verify that the domain name is in either or ģ.Run a forward DNS lookup on the domain name retrieved in step 1 using the host command on the retrieved domain name. I've written a library in Java that performs these checks for you. ![]() If the resulting IP is the same as the one of the site's visitor, you're sure it's a crawler from that search engine. Then, because someone could set such a reverse DNS on his IP, you need to verify with a forward DNS lookup on that hostname. For Google this brings a host name under, for Bing it's under. The top search engines officially support verification through DNS, as explained by Google and Bing Īt first perform a reverse DNS lookup of the client IP. All the lists you find online are outdated. In the old days this required maintaining IP lists. The 2nd part is verifying the client's IP. If (strpos($crawlers_agents, $USER_AGENT) = false)īecause any client can set the user-agent to what they want, looking for 'Googlebot', 'bingbot' etc is only half the job. $crawlers_agents = implode('|',$crawlers) Stack Exchange network consists of 181 Q
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