不同浏览器中URL的最大长度是多少?浏览器有什么不同?
HTTP协议是否要求它?
如果您将URL保持在2000个字符以下,它们几乎可以在客户端和服务器软件的任何组合中使用.
如果您要定位特定浏览器,请参阅下文了解具体限制的详细信息.
RFC 2616(超文本传输协议HTTP/1.1)第3.2.1节说
HTTP协议不对URI的长度设置任何先验限制.服务器必须能够处理它们所服务的任何资源的URI,并且如果它们提供可以生成这种URI的基于GET的表单,它应该能够处理无限长度的URI.如果URI长于服务器可以处理的长度,服务器应该返回414(Request-URI Too Long)状态(参见10.4.15节).
RFC7230已经废弃了RFC,这是对HTTP/1.1规范的刷新.它包含类似的语言,但也继续建议:
在实践中发现了对请求线长度的各种临时限制.建议所有HTTP发件人和收件人至少支持8000个八位字节的请求行长度.
这就是标准所说的.对于现实,看到这一研究过在boutell.com,看看有什么个人的浏览器和服务器实现将支持.值得一读,但执行摘要是:
极长的URL通常是一个错误.超过2,000个字符的网址在最受欢迎的网络浏览器中无效.如果您希望您的网站为大多数互联网用户工作,请不要使用它们.
(注:这是写在文章报价2006年,但在2015年IE的使用率下降意味着更长的网址,也为广大的工作.然而,IE仍然有限制....)
IE8的最大URL长度是2083个字符,似乎IE9有类似的限制.
我测试了IE10,地址栏只接受2083个字符.您可以单击长于此的URL,但地址栏仍将仅显示此链接的2083个字符.
在IE Internals博客上有一篇很好的文章,其中介绍了一些背景知识.
有混合报告IE11支持更长的URLS - 请参阅下面的评论.鉴于有些人报告问题,一般建议仍然存在.
请注意,站点地址协议允许站点通知搜索引擎可用的页面,URL中的限制为2048个字符.如果您打算使用站点地图,则已经为您决定了限制!(见下面的Calin-Andrei Burloiu的回答)
从2010年开始,还有一些关于搜索引擎将抓取和索引的最大URL长度的研究.他们发现限制是2047个字符,这似乎与sitemap协议规范相关.但是,他们还发现Google SERP工具无法处理超过1855个字符的网址.
我针对配置了非常大的LimitRequestLine和LimitRequestFieldSize的Apache 2.4服务器测试了以下内容.
Browser Address bar document.location or anchor tag ------------------------------------------ Chrome 32779 >64k Android 8192 >64k Firefox >64k >64k Safari >64k >64k IE11 2047 5120 Edge 16 2047 10240
另见Matas Vaitkevicius的答案如下.
这是一个很受欢迎的问题,因为最初的研究大约12岁,我会尽力保持最新:截至2018年9月,这个建议仍然存在.即使IE11可能接受更长的URL,但旧的IE安装无处不在以及搜索引擎限制意味着保持在2000字符以下是最好的一般策略.
我遇到的最长网址是数据网址
来自Google图片搜索结果的示例图片网址(11747个字符)
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
WWW常见问题解答:URL的最大长度是多少?基于经验测试和研究有自己的答案.简短的回答是,超过2048个字符会使Internet Explorer不满意,因此这是您应该使用的限制.请参阅该页面以获得详细的答案.
我写了这个测试,一直在添加'a'
参数,直到浏览器失败
C#部分:
[AcceptVerbs(HttpVerbs.Get)]
public ActionResult ParamTest(string x)
{
ViewBag.TestLength = 0;
if (!string.IsNullOrEmpty(x))
{
System.IO.File.WriteAllLines("c:/result.txt",
new[] {Request.UserAgent, x.Length.ToString()});
ViewBag.TestLength = x.Length + 1;
}
return View();
}
视图:
第1部分
在Chrome上,我得到了:
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.130 Safari/537.36 2046
然后爆炸:
HTTP错误404.15 - 未找到请求筛选模块配置为拒绝查询字符串太长的请求.
Internet Explorer 8和Firefox上也一样
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E) 2046 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0 2046
第2部分
我进入了简易模式并为IISExpress applicationhost.config
和web.config
设置添加了额外的限制maxQueryStringLength="32768"
.
Chrome failed with message 'Bad Request - Request Too Long HTTP Error 400. The size of the request headers is too long.
在7744个字符之后.
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.130 Safari/537.36 7744
第3部分
添加
这根本没有帮助.我最终决定使用fiddler从头文件中删除引用者.
static function OnBeforeRequest(oSession: Session) { if (oSession.url.Contains("localhost:50766")) { oSession.RequestHeaders.Remove("Referer"); }
哪个做得很好.
Chrome:得到15613个字符.(我猜这是IIS的16K限制)
它又失败了:
Bad Request - Request Too Long
HTTP Error 400. The size of the request headers is too long.
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.130 Safari/537.36 15613
火狐:
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0 15708
Internet Explorer 8因iexplore.exe崩溃而失败.
2505之后
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E) 2505
Android模拟器
Mozilla/5.0 (Linux; Android 5.1; Android SDK built for x86 Build/LKY45) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/39.0.0.0 Mobile Safari/537.36 7377
Internet Explorer 11
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C) 4043
Internet Explorer 10
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/6.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C) 4043
Internet Explorer 9
Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0) 4043
实际上没有通用的最大URL长度.最大长度仅由客户端浏览器选择支持的内容确定,其变化很大.2,083限制仅出现在Internet Explorer(所有版本高达7.0)中.Firefox和Safari中的最大长度似乎是无限的,尽管URL达到约65,000个字符时出现不稳定.Opera似乎没有任何最大URL长度,并且不会在极长的时间内出现不稳定性.
在iOS上,URL方案没有限制.即使是300多MB长的URL也被接受.您可以尝试这样的长网址:
// Make sure the URL string isn't too long.
// We're limiting it to 2GB for backwards compatibility with 32-bit executables using NS/CFURL
if ( (urlStringLength > 0) && (urlStringLength <= INT_MAX) )
{
...
如果成功,请抓住:
NSString *path = [@"a:" stringByPaddingToLength:314572800 withString:@"a" startingAtIndex:0];
NSString *js = [NSString stringWithFormat:@"window.location.href = \"%@\";", path];
[self.webView stringByEvaluatingJavaScriptFromString:js];
的URI RFC(其中URL是一个子集)没有定义的最大长度,但是,它建议该URI的主机名部分(如果适用)的长度不得超过255个字符:
URI生成器应使用符合DNS语法的名称,即使DNS的使用不明显,也应将这些名称限制为不超过255个字符.
如其他帖子所述,某些浏览器对URL的长度有实际限制.
在HTTP 1.1规范说:
HTTP中的URI可以用绝对形式或相对于某个
已知的基URI [11]来表示,具体取决于它们的使用环境.这两种
形式的区别在于绝对URI始终
以方案名称后跟冒号开头.有关
URL语法和语义的确切信息,请参阅"统一资源标识符(URI):通用语法和语义",RFC 2396 [42](它取代了RFC 1738 [4]和RFC 1808 [11]).该规范采用该规范中的"URI-reference","absoluteURI","relativeURI","port",
"host","abs_path","rel_path"和"authority"的
定义.HTTP协议不对
URI 的长度设置任何先验限制.服务器必须能够处理它们所服务的任何资源的URI,并且如果它们提供可以生成这种URI的基于GET的表单,应该能够处理无限长度的URI.*服务器应该返回414(Request-URI Too Long)如果URI长于服务器可以处理的状态(请参阅第10.4.15节).注意:服务器应该谨慎依赖于长度超过255个字节的URI,因为某些较旧的客户端或代理实现可能无法正确支持这些长度.
正如@Brian所提到的,HTTP客户端(例如浏览器)可能有自己的限制,HTTP服务器将有不同的限制.
Microsoft支持说"Internet Explorer中的最大URL长度为2,083个字符".
IE的URL存在问题.Firefox似乎与> 4k字符一起工作正常.
在URL中,雅各布尼尔森建议:
当用户想要互相推荐网页时,网络的社交界面依赖于电子邮件,而电子邮件是用户访问新网站(搜索引擎最常见)的第二常见方式:确保您的所有网址都是网站长度少于78个字符,因此它们不会换行换行.
这不是最大值,但如果您希望共享您的URL,我认为这是一个实际的最大值.
Sitemaps协议是网站管理员向搜索引擎通知其网站上的网页(也由Google在网站站长工具中使用)的一种方式,支持少于2048个字符的网址.因此,如果您计划将此功能用于搜索引擎优化,请考虑这一点.
ASP.NET 2和SQL Server报告服务2005的限制为2028.我发现这很困难,我的动态URL生成器不会将某些参数传递给超出该点的报告.这是在Internet Explorer 8下.
为什么Internet Explorer限制只有2K,而IIS限制为16K?我认为这没有道理.
所以我想开始一个关于Ajax请求URL大小限制的实验.
我已经设置了我的Tomcat HTTP连接器的maxHttpHeaderSize ="1048576".并准备了一个很长的URL.
然后我发送一个带有长URL的请求,如下所示:
var url="/ajax/url-length.jsp"; jQuery.ajax(url,{data:{q:"0".repeat(1048000-url.length-4)}});
jQuery报告完成了.Tomcat报告请求的URL是1048015字节.它使用Chrome 50和Internet Explorer 11进行了测试.
因此,在发送Ajax请求时,Web浏览器不会故意截断或限制您的URL.
限制请求行指令设置URL的最大长度.默认情况下,它设置为8190,这为您提供了大量空间.然而,其他服务器和一些浏览,限制了更多的长度.
由于所有参数都在URL行上传递,因此隐藏字段密码中的项目也将显示在URL中.移动设备都不应该用于真正的安全措施,并且应该被视为化妆品安全性.
我有使用SharePoint 2007,2010的经验,在这种情况下,SharePoint可以从服务器端创建长度URL的限制,因此它主要取决于:1)客户端(浏览器,版本和操作系统)和2)服务器技术,IIS,Apache等
Chrome似乎至少提升了此限制.我将20,000个字符粘贴到书签中,然后就可以了.