This article describes the PHP record search engine spiders to visit the Web site footprint method. Share to everyone for your reference. The specific analysis is as follows:
Search engine spiders visit the site through the remote crawl page to do, we can not use the JS code to obtain the spider agent information, but we can through the image tag, so we can get the spider agent data, through the agent data
Program | multithreading | control
In the "Crawler/Spider Program Production (C # language)" article, has introduced the crawler implementation of the basic methods, it can be said that the crawler has realized the function. It's just that there is an efficiency problem and the download speed may be slow. This is caused by two reasons:
1. Analysis and download can not be synchronized. The Reptile/Spider pro
This article describes how to record the website footprint of a search engine spider in PHP. The example shows how to record the web footprint of a search engine spider in php, it involves creating databases and recording various common search engine access methods in php. For more information, see the following example. Share it with you for your reference. The specific analysis is as follows:
The search
When using dynamic parameters on static pages, the solution that spider crawls multiple times and repeats is introduced.Cause:
In the early days, because of the imperfect search engine spider, it is easy for spider crawls dynamic URLs due to unreasonable website programs and other reasons that lead to endless loops of spider
Beginners like to ask "why is xx page in front of me?" "The reason is in with a lot of SEO details and methods. Point Stone rarely said this part, I hope this article can help beginners, more welcome to help make suggestions.
Today, when I updated my latest movie website, I found that Spider-Man 3 will be released in China on May 2. "Spider-Man 3" should be a very promising keyword, right? Specially a
The following is an access log file
2008-8-13 14:43:22
mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1. NET CLR 2.0.50727;. NET CLR 1.1.4322)
2008-8-13 14:43:27
mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1. NET CLR 2.0.50727;. NET CLR 1.1.4322)
2008-8-13 14:44:18
mozilla/5.0 (compatible; Yahoo! Slurp; HTTP://HELP.YAHOO.COM/HELP/US/YSEARCH/SLURP)
2008-8-13 14:44:26
mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; Qqdownload 1.7;. NET CLR 1.1.4322;. NET CLR 2.0.
more than one robot is limited by the protocol, there must be at least one user-agent record for the file. If the value of the key is set to *, the protocol is valid for any robot, and in the "robots.txt" file, there can be only one record for "user-agent:*". For search engine robots name, please refer to the article "search engine Spider program name Daquan"Disallow:The value of the item is used to describe a URL that you do not want to be accessed,
Source: http://www.howbeauty.org/body-care/229318.htm
Talk to your doctor about the advantages and disadvantages of sclerotherapy before you agree to the procedure. with sclerotherapy, there are no guarantees for success (about 10 percent of people see no results at all, even after repeated treatment ). while less expensive than other types of treatment, it may also require more postoperative care, including the wearing of special compression garments.
Use sclerotherapy to treat
URL rewrite and Google spider
We know that we need to take some measures to search engines for websites. At least we need to rewrite the URL. But the problem is.We found that Google Yahoo spider could not catch the webpage Baidu.
All are 500 errors or 302 errors .. dizzy.
I had to write down the error.Void application_error (Object sender, eventargs E)
{
Exception error = server. getlasterror ();
String Pa
Using php to make the page accessible only by Baidu gogole spider, you can refer to the following if you need it. The difference between a common user and a search engine spider crawling is that the user agent sent,
Looking at the website log file, we can find that Baidu spider's name contains Baiduspider, while google's name is Googlebot. in this way, we can determine whether to cancel normal user access
The spider, also known as WebCrawler or robot, is a program that is a collection of roaming Web documents along a link. It typically resides on the server, reads the document using a standard protocol such as HTTP, with a given URL, and then continues roaming until there are no new URLs that meet the criteria, as a new starting point for all of the URLs included in the document. The main function of WebCrawler is to automatically fetch Web documents f
Source: http://www.0531s.com/content-46-1927014-1.htmlYisouspider Spider Crawl Web page can cause the CPU to skyrocket, affect other spiders and user's access, after many experiments, found that IIS comes with URL rewrite can play a role.First select the site you want to mask, and then open the URL rewrite.Open Inbound RuleOpen Add rule, select Request BlockClick OK, in the new pop-up interface, select the user Agent header in the access blocking basi
By skinned mesh tortured for a long time, began to feel skinindices wrong, because the PIX display is full of 0And then followed to find out that the uchar integers were shown in the format of float by the PIX (shown as 0.0000000 instead of the life of the uint shown as 0)Turns into a very small number, so it's 0.00000.So Skinindices is right, and weight looks right, because adding up equals 1.Oh, yes, Phyre's d3d11 to put shader inside the semanticSkinindices:blendindices;Skinweights:blendweigh
Problem description Spider card is a Windows XP operating system comes with a card game, the rules of the game is like this: only to drag the card than her freshman card above (a minimum, K max), if you drag the cards in order to arrange the cards, then these cards are also moving together, The purpose of the game is to all the cards in the same suit from small to large row, for the sake of simplicity, our game only the same suit of 10 cards, from a t
: Print("INFO--Current URL: "%response.url) Json_data= Response.json (). Get ("Data") #Start parsing Data ifJson_data: forIteminchjson_data: _title= Item.get ("title") _imgdict= Item.get ("image_list") #fix the URL, the default image address is a small image, we want a large HD image_imglist = [Str ("http:"+ _.get ("URL"). Replace ("List","Large") for_inch_imgdict]#Create a storage directory_downloaddir =Os.path.join (Self.downl
Apache Log why not record Baidu Spider. This problem is believed that many beginners have basically met, the Apache log default is not to record Baidu Spiders, Google and the major search engine spider program, but only need to modify a place can solve the problem, now directly to the answer to write out:For example, once a friend in Baidu know the question:
""""Logformat "%h%l%u%t \%r\"%>s%b \ "%{referer}i
Now many schools in class often have some computer classes, this time always will control your computer, this software is generally red spider, and this software is not easy to close, after the shutdown will automatically restart. I have studied the software can still be closed, today I will tell you the method. But everybody's attention, the class still wants to listen, I just teach everybody to close the method only ~
1, we must find the Red spider
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