[{"data":1,"prerenderedAt":214},["ShallowReactive",2],{"blog:what-is-a-proxy":3},{"zh-CN":4,"en":116},{"blocks":5,"faq":100},[6,9,11,13,17,19,21,23,25,28,30,51,53,56,58,60,63,65,67,69,71,73,76,78,80,83,85,93,96,98],{"type":7,"html":8},"p","代理是转发流量的中间服务器：请求先送到代理，代理再帮你送到目标网站，对方看到的是代理的地址，不是你的。这是代理最核心、也是唯一必须具备的功能，剩下的差异都是围绕这一点展开的。",{"type":7,"html":10},"「科学上网工具」这个大类底下，代理和 VPN 经常被混着提，两者确实能解决部分同样的问题，但覆盖范围、要不要加密、配置起来麻不麻烦，差别不小。这三个字听起来简单，指的东西却不完全统一——手机系统设置里的代理、浏览器插件里的代理、圈内说的「机场」，说的都是同一层技术，只是包装成了不同的产品形态。这篇把代理单独拎出来讲清楚，讲完再对比 VPN，剩下的判断留给你自己的场景。",{"type":7,"html":12},"先说一个常见的误会：装了代理不等于什么都安全了。代理解决的是「网站看到的地址是谁」这一个问题，跟账号安不安全、内容会不会被中间人看到，是完全不同的问题，后面会拆开说清楚。",{"type":14,"id":15,"html":16},"h2","bp-what","代理到底是什么",{"type":7,"html":18},"代理是一台专门做转发的服务器。设备发出的请求先经过代理，代理替你去访问目标网站，拿到结果后再转发回来。整个过程里，目标网站看到的连接来源是代理的地址，不是设备自己的地址。",{"type":7,"html":20},"打个比方，代理有点像让朋友帮你去柜台取快递：柜台只认得来取件的是「朋友」，不知道包裹最终是要给谁的。目标网站看到的连接方，同样只是代理这一层，看不到设备本身。",{"type":7,"html":22},"这个转发动作可以发生在不同层面：整个系统统一转发，或者只在某一个应用、某一个浏览器里单独设置。这也是为什么「装了代理」不一定等于「所有流量都走了代理」——具体覆盖到哪一层，看的是配置的范围，不是装没装这个动作本身。",{"type":7,"html":24},"代理也不是协议——协议管的是数据怎么打包和传输，\u003Ca href=\"\u002Fblog\u002Fvpn-protocols-explained\u002F\">VPN 协议是什么\u003C\u002Fa>专门讲了那一层，跟代理要解决的问题完全不是一回事，两者经常被放在同一句话里讨论，但各自管的事情没有交集。",{"type":14,"id":26,"html":27},"bp-vs-vpn","代理和 VPN 有什么区别",{"type":7,"html":29},"两者最容易被混的原因是都能换一个对外的地址，但实现方式和覆盖范围完全不同。",{"type":31,"align":32,"head":34,"rows":38},"table",[33,33,33],null,[35,36,37],"对比项","代理","VPN",[39,43,47],[40,41,42],"覆盖范围","通常只覆盖设置过的应用或浏览器","通常覆盖整台设备的流量",[44,45,46],"加密","大多数代理不加密","默认给整条隧道加密",[48,49,50],"常见设置方式","在系统或应用里手动填服务器地址和端口","安装客户端，登录账号，点击连接",{"type":7,"html":52},"举个具体场景：只想让某一个浏览器访问某个网站时换一个地址，其他应用照常直连，代理就够用，配置也更轻；想让手机或电脑上所有联网的应用都统一换掉出口，包括后台自动同步、系统自带的应用商店，那是 VPN 要解决的范围，代理做不到这么彻底。简单说，代理更像是给某一个应用单独指了一条路，VPN 是把整台设备的出口都换掉。想看更完整的对比维度，\u003Ca href=\"\u002Fcomparison\u002F\">功能对比\u003C\u002Fa>列了更多条目。",{"type":14,"id":54,"html":55},"bp-decide","该怎么选，看你想解决什么",{"type":7,"html":57},"两者不是谁取代谁的关系，适合的场景不一样。只是偶尔查一个页面、不涉及账号登录，对配置有耐心，代理够用，还更轻量；日常使用、涉及登录状态、想要整机统一处理，VPN 是更省心的选择，装完整台设备的流量都覆盖了，不需要再一个个应用去设置。",{"type":7,"html":59},"也有人两者一起用：VPN 负责日常整机的连接，代理留着处理某个只需要临时换地址、又不想为此重新连接整机 VPN 的小场景。这不矛盾，只要清楚每一层各自在管什么，别把账号密码这类重要信息交给配置更松散的那一层。",{"type":14,"id":61,"html":62},"bp-practice","在实际使用中你会在哪见到代理",{"type":7,"html":64},"最常见的场景是系统网络设置里那个「代理」选项，手动填服务器地址和端口号。这一填只影响系统层面能接管到的那部分流量，有些应用会绕开系统代理，单独维护自己的一套连接设置，填了系统代理不代表这些应用也跟着走了。",{"type":7,"html":66},"浏览器插件形式的代理也很常见，装上以后只处理这个浏览器里的请求，切到别的应用或者换一个浏览器，又变回了原始地址，不像 VPN 那样一次接管全部出口。",{"type":7,"html":68},"手机系统里同样能找到类似的设置，通常藏在 Wi-Fi 详情页面里，标注着「代理」或者「HTTP 代理」，填法和电脑上大同小异，只对当前连接的这个 Wi-Fi 生效，换一个网络又要重新填一次——这也是移动端用代理比用 VPN 麻烦的地方，网络换了，设置经常不会跟着走。",{"type":7,"html":70},"「机场」这个圈内俗称，卖的大多也是代理节点账号，买到以后自己找客户端软件导入，自己维护分流规则。VPN 和机场有什么区别专门讲了这一层的架构差异——机场和代理不是两件不相关的事，而是同一层东西的不同叫法。",{"type":72},"downloads",{"type":14,"id":74,"html":75},"bp-content","代理会不会决定我看到的内容",{"type":7,"html":77},"代理换的是对外的地址，这个地址决定了网站判断你「大概在哪」，进而影响给你看哪个地区的内容。\u003Ca href=\"\u002Fblog\u002Fwhat-is-an-ip-address\u002F\">IP 地址是什么\u003C\u002Fa>那篇讲了地址和地区判断之间的关系，这里只说结论：换了代理能不能看到某个地区限定的内容，取决于目标网站是不是只按这一个地址判断，而不是还叠加了账号注册地、支付方式这些别的信号。",{"type":7,"html":79},"常见的例子是一些内容平台按地区分发不同的资源库，换了代理，平台以为连接来自另一个地区，列表也会跟着变——这类场景下代理确实有用，前提是平台真的只按连接地址判断，没有叠加别的验证方式。这也是为什么有时候换了代理，内容列表看起来变了，账号本身却还是提示「当前地区不可用」，两种判断用的不是同一个信号，代理只改了其中一个。",{"type":14,"id":81,"html":82},"bp-limits","代理不能保护什么",{"type":7,"html":84},"代理不等于隐私全套方案，它解决的只是「网站看到的地址是谁」这一件事，下面这几件事都在它管辖范围之外。",{"type":86,"items":87},"list",[88,89,90,91,92],"不改变账号本身的身份——登录了哪个账号，那个网站自己记录得清清楚楚，跟走不走代理没关系。","不一定加密——多数代理只负责转发，不负责给内容加密，同一段 Wi-Fi 下的其他设备，理论上仍可能看到未加密的内容。","代理服务器自己也能看到经过它的内容——如果这段流量没有额外加密，负责转发的那一方理论上能读到具体内容，选一个信任度不明的免费代理，相当于把这部分信任转交给了对方。","不覆盖没配置到的应用——只设置了浏览器，其他应用一样走原来的路，不会因为浏览器换了地址就跟着一起变。","换了地址不代表完全隐蔽——部分网站会主动识别代理特征，发现是代理地址后拒绝服务或者要求额外验证，这不是代理的缺陷，是目标网站自己设的门槛，换个角度看，也说明「换了地址」这件事本身并不等于藏起来了。",{"type":14,"id":94,"html":95},"bp-final","总结",{"type":7,"html":97},"代理是转发流量的中间服务器，换的是网站看到的对外地址，通常只覆盖设置过的那部分应用，大多不加密。VPN 解决的是同一类问题里更完整的一版：整机流量、默认加密、一次设置全覆盖，不需要为每个应用单独折腾。",{"type":7,"html":99},"快橙作为 VPN 产品，一个订阅可以同时覆盖多台设备，不需要在每个应用里单独填代理地址，连接和加密默认覆盖整机。\u003Ca href=\"\u002Ffeatures\u002F\">功能介绍\u003C\u002Fa>有更完整的说明，注册后每天有免费试用时长，先用一次感受下和手动配代理的差别。",[101,104,107,110,113],{"q":102,"a":103},"代理和 VPN 是同一个东西吗？","不是。代理通常只转发单个应用或浏览器的流量，VPN 接管的是整台设备；代理大多不加密，VPN 默认给整条隧道加密。两者解决的问题有重叠，但覆盖范围不一样。",{"q":105,"a":106},"机场算代理还是 VPN？","机场卖的通常是代理节点账号，买到后要自己找客户端软件、自己配分流规则，跟 VPN 那种一体化产品是两种商业模式。VPN 和机场有什么区别专门拆过这个。",{"q":108,"a":109},"用了代理，网站还能看出我的真实 IP 吗？","正常情况下看不到，网站看到的是代理服务器的地址。但如果代理配置不完整，比如浏览器里有些请求走了代理、有些没走，真实地址还是可能露出来。",{"q":111,"a":112},"免费代理安全吗？","免费代理的运营成本总要从某处收回，值得先搞清楚对方靠什么盈利。多数免费代理不加密，用来处理需要登录账号或者填资料的场景风险偏高，只适合无关紧要的临时查询。",{"q":114,"a":115},"快橙算代理还是 VPN？","是 VPN：整机流量走加密隧道，一个订阅可以覆盖多台设备，不需要在每个应用里单独填代理地址。",{"blocks":117,"faq":198},[118,120,122,124,126,128,130,132,134,136,138,156,158,160,162,164,166,168,170,172,174,175,177,179,181,183,185,192,194,196],{"type":7,"html":119},"A proxy is a middle server that forwards traffic on your behalf: a request goes to the proxy first, the proxy sends it on to the destination, and the destination sees the proxy's address, not yours. That is the one thing every proxy does, and everything else about it is a variation built around that single fact.",{"type":7,"html":121},"Under the broad label of "circumvention tools," proxies and VPNs get mentioned in the same breath constantly. They do solve some of the same problems, but they differ a great deal in coverage, whether they encrypt anything, and how much setup they demand. The word sounds simple enough, yet it covers several different things: a proxy field buried in phone settings, a browser extension, and what the circumvention-tool scene calls an "airport" (机场) service are all the same underlying technique wearing different packaging. This article covers the proxy on its own first, then sets it against a VPN, and leaves the choice to your own situation.",{"type":7,"html":123},"One misunderstanding is worth clearing up early: installing a proxy does not make everything safe. A proxy solves exactly one problem, namely which address a site sees. Account security and whether content can be read by someone in the middle are entirely different problems, covered further down.",{"type":14,"id":15,"html":125},"What a proxy actually is",{"type":7,"html":127},"A proxy is a server whose whole job is forwarding. A request leaves the device, passes through the proxy, and the proxy fetches the destination on your behalf before relaying the result back. Throughout that exchange, the destination site sees a connection coming from the proxy's address, never from the device itself.",{"type":7,"html":129},"Think of it like asking a friend to pick up a parcel at the counter for you. The counter only ever deals with "the friend"; it never learns who the parcel is really for. A destination site sees exactly that friend-at-the-counter layer, not the device behind it.",{"type":7,"html":131},"That forwarding can happen at different levels: system-wide, or scoped to a single app or browser. That is also why "I set up a proxy" does not automatically mean "all my traffic goes through it" — how much gets covered depends on where the setting was made, not on the act of installing one.",{"type":7,"html":133},"A proxy is not a protocol, either. A protocol governs how data gets packaged and transported. \u003Ca href=\"\u002Fen\u002Fblog\u002Fvpn-protocols-explained\u002F\">What a VPN protocol actually is\u003C\u002Fa> covers that layer on its own; it solves a problem with no overlap with what a proxy does, even though the two words often turn up in the same sentence.",{"type":14,"id":26,"html":135},"How a proxy differs from a VPN",{"type":7,"html":137},"The two get confused mainly because both can change the address a destination sees. How they get there, and how much they cover, are completely different.",{"type":31,"align":139,"head":140,"rows":143},[33,33,33],[141,142,37],"Comparison","Proxy",[144,148,152],[145,146,147],"Coverage","Usually only the app or browser it was set up in","Usually the whole device's traffic",[149,150,151],"Encryption","Most proxies carry none","Encrypts the whole tunnel by default",[153,154,155],"Typical setup","Type a server address and port into a system or app setting","Install a client, sign in, tap connect",{"type":7,"html":157},"Here is a concrete case: if you only want one browser to look like it is somewhere else for one site, while everything else connects normally, a proxy is enough, and lighter to set up. If you want every app on a phone or laptop to change its exit point at once, including background sync and the system's own app store, that is the scope a VPN covers and a proxy cannot reach. In short, a proxy points one app down a different road; a VPN swaps the exit for the whole device. \u003Ca href=\"\u002Fen\u002Fcomparison\u002F\">The fuller feature comparison\u003C\u002Fa> lists more angles than this article covers.",{"type":14,"id":54,"html":159},"Which one actually fits what you need",{"type":7,"html":161},"Neither replaces the other; they simply suit different situations. Checking one page occasionally, with no login involved, and some patience for setup — a proxy is enough, and lighter besides. Daily use, anything involving a logged-in session, wanting the whole device handled at once — a VPN is the less fiddly choice, since installing it covers every app on the device at once instead of configuring them one by one.",{"type":7,"html":163},"Some people run both: a VPN for daily, whole-device use, and a proxy kept around for the odd case that only needs a quick address change without reconnecting the whole VPN. That is not a contradiction, as long as you keep straight what each layer is responsible for, and never hand anything sensitive, like an account password, to the more loosely configured one.",{"type":14,"id":61,"html":165},"Where you actually run into a proxy",{"type":7,"html":167},"The most common spot is that "proxy" field in system network settings, where you type a server address and a port number by hand. That only affects whatever the system layer can actually intercept; some apps bypass the system proxy entirely and keep their own separate connection settings, so filling in the system proxy does not mean those apps follow along.",{"type":7,"html":169},"Browser-extension proxies are common too. Once installed, they only handle requests from that one browser; switch to another app or another browser and you are back to the original address, unlike a VPN, which takes over every exit point at once.",{"type":7,"html":171},"Phones have something similar, usually tucked into the Wi-Fi details screen and labelled "Proxy" or "HTTP Proxy." Filling it in works much like on a computer, except it only applies to the Wi-Fi network you filled it in for — switch networks and you have to type it in again. That is exactly why running a proxy on mobile is more of a hassle than running a VPN: the setting does not usually follow you when the network changes.",{"type":7,"html":173},"What the scene calls an "airport" (机场) service is, more often than not, also a proxy node account: you buy it, then find your own client software to import it into and maintain your own routing rules. VPN vs airport proxy services covers that architectural gap in detail — an airport service and a proxy are not two unrelated things, just two names for the same layer.",{"type":72},{"type":14,"id":74,"html":176},"Does a proxy decide what content I see",{"type":7,"html":178},"Changing the address through a proxy changes what a site guesses about roughly where you are, which in turn can change which region's content library it shows you. \u003Ca href=\"\u002Fen\u002Fblog\u002Fwhat-is-an-ip-address\u002F\">What an IP address actually is\u003C\u002Fa> covers the link between an address and that regional guess in full; the short version here is that whether a proxy unlocks region-locked content depends entirely on whether the destination judges purely by that one address, rather than stacking on other signals like where the account was registered or which payment method is on file.",{"type":7,"html":180},"A common example is a content platform that serves a different library by region: switch proxies, and the platform assumes the connection is coming from somewhere else, so the list changes. That genuinely works, provided the platform really does judge by the connection address alone, with nothing else layered on top. It also explains the odd case where the content list appears to change while the account itself still says "not available in your region" — the two checks do not read the same signal, and a proxy only changes one of them.",{"type":14,"id":81,"html":182},"What a proxy does not protect",{"type":7,"html":184},"A proxy is not a full privacy package. It solves exactly one thing, which address a site sees, and everything below sits outside what it covers.",{"type":86,"items":186},[187,188,189,190,191],"It does not change who you are to the account itself — whichever account you log into, that site keeps its own record of it regardless of whether traffic passed through a proxy.","It is not necessarily encrypted — most proxies only forward, they do not encrypt content, so another device on the same Wi-Fi can, in theory, still read unencrypted traffic.","The proxy operator itself can see what passes through it — if that traffic carries no extra encryption, whoever runs the forwarding can, in principle, read the content, so routing through an unknown free proxy hands that trust to a stranger.","It does not cover apps you never configured — set it up in a browser only, and every other app keeps using its original route; it does not follow along just because the browser's address changed.","Changing the address is not the same as disappearing — some sites actively detect proxy-like addresses and refuse service or demand extra verification. That is not a flaw in the proxy; it is a barrier the destination chose to set, and it is a reminder that a changed address is not automatically an invisible one.",{"type":14,"id":94,"html":193},"In summary",{"type":7,"html":195},"A proxy is a middle server that forwards traffic, changing the address a site sees, usually only for whichever app it was configured in, and usually without encryption. A VPN solves the fuller version of the same problem: the whole device, encrypted by default, set up once instead of app by app.",{"type":7,"html":197},"As a VPN product, FastOrange lets one subscription cover multiple devices at once, with no need to type a proxy address into each app separately, and encryption covering the whole device by default. \u003Ca href=\"\u002Fen\u002Ffeatures\u002F\">See what it does\u003C\u002Fa> for the fuller picture. Every registered account gets free trial time daily, so try it once and feel the difference against configuring a proxy by hand.",[199,202,205,208,211],{"q":200,"a":201},"Are a proxy and a VPN the same thing?","No. A proxy usually forwards traffic for a single app or browser, while a VPN takes over the whole device. Most proxies carry no encryption; a VPN encrypts the whole tunnel by default. The two overlap in what they solve, but not in how much they cover.",{"q":203,"a":204},"Is an airport service (机场) a proxy or a VPN?","What gets sold is usually a proxy node account. You then have to find your own client software and set up your own routing rules, which is a different business model from an all-in-one VPN product. VPN vs airport proxy services covers this split in full.",{"q":206,"a":207},"If I use a proxy, can a site still see my real IP?","Normally no, it sees the proxy's address instead. But if the proxy setup is incomplete, say some browser requests go through it and some do not, the real address can still leak through.",{"q":209,"a":210},"Is a free proxy safe to use?","Running a free proxy still costs money somewhere, and it is worth knowing how the operator actually makes it back. Most free proxies carry no encryption, so the risk runs higher for anything involving logins or personal details, and they suit only casual, low-stakes lookups.",{"q":212,"a":213},"Is FastOrange a proxy or a VPN?","A VPN. The whole device's traffic runs through an encrypted tunnel, one subscription covers multiple devices, and there is no need to type a proxy address into each app separately.",1790199275468]