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在开启了CloudFlare的页面中显示当前节点信息 效果正如本站底部右下角所显示的那样当前CDN节点: Hong Kong - (HKG)，是不是感觉炫酷？请继续往下看原理与实现当一个网站开启了CloudFlare的CDN页面时，会出现一个CF（CloudFlare简称，下同）的CDN测试页面，就在这里/cdn-cgi/trace，我这里访问得到的应答是以下：fl=12f399 h=blog.520.fi ip=用户IP ts=1592196919.147 visit_scheme=http uag=Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3314.0 Safari/537.36 SE 2.X MetaSr 1.0 colo=LAX http=http/1.1 loc=CN tls=off sni=off warp=off所以我们需要取出colo字段，当然这里只是简写。我们可以在 https://www.cloudflarestatus.com/ 获取全部节点信息。我们刚才拿到的的SJC就是San Jose, CA, United States - (SJC)。这样的话，实现方法就来了，我就直接贴代码了。<script type="text/javascript" src="https://cdn.staticfile.org/jquery/3.4.1/jquery.min.js"></script> <!--引入JQuery，如果别处引入过滤，可省略--> 当前CDN节点: <span id="cdn">unknown</span> <!--在适当的地方放入需要显示CDN节点的信息--> <script> getCDNinfo = function() { $.ajax({ url: "/cdn-cgi/trace", success: function(data, status) { let areas = "Antananarivo, Madagascar - (TNR);Cape Town, South Africa - (CPT);Casablanca, Morocco - (CMN);Dar Es Salaam, Tanzania - (DAR);Djibouti City, Djibouti - (JIB);Durban, South Africa - (DUR);Johannesburg, South Africa - (JNB);Kigali, Rwanda - (KGL);Lagos, Nigeria - (LOS);Luanda, Angola - (LAD);Maputo, MZ - (MPM);Mombasa, Kenya - (MBA);Port Louis, Mauritius - (MRU);Réunion, France - (RUN);Bangalore, India - (BLR);Bangkok, Thailand - (BKK);Bandar Seri Begawan, Brunei - (BWN);Cebu, Philippines - (CEB);Chengdu, China - (CTU);Chennai, India - (MAA);Chittagong, Bangladesh - (CGP);Chongqing, China - (CKG);Colombo, Sri Lanka - (CMB);Dhaka, Bangladesh - (DAC);Dongguan, China - (SZX);Foshan, China - (FUO);Fuzhou, China - (FOC);Guangzhou, China - (CAN);Hangzhou, China - (HGH);Hanoi, Vietnam - (HAN);Hengyang, China - (HNY);Ho Chi Minh City, Vietnam - (SGN);Hong Kong - (HKG);Hyderabad, India - (HYD);Islamabad, Pakistan - (ISB);Jakarta, Indonesia - (CGK);Jinan, China - (TNA);Karachi, Pakistan - (KHI);Kathmandu, Nepal - (KTM);Kolkata, India - (CCU);Kuala Lumpur, Malaysia - (KUL);Lahore, Pakistan - (LHE);Langfang, China - (NAY);Luoyang, China - (LYA);Macau - (MFM);Malé, Maldives - (MLE);Manila, Philippines - (MNL);Mumbai, India - (BOM);Nagpur, India - (NAG);Nanning, China - (NNG);New Delhi, India - (DEL);Osaka, Japan - (KIX);Phnom Penh, Cambodia - (PNH);Qingdao, China - (TAO);Seoul, South Korea - (ICN);Shanghai, China - (SHA);Shenyang, China - (SHE);Shijiazhuang, China - (SJW);Singapore, Singapore - (SIN);Suzhou, China - (SZV);Taipei - (TPE);Thimphu, Bhutan - (PBH);Tianjin, China - (TSN);Tokyo, Japan - (NRT);Ulaanbaatar, Mongolia - (ULN);Vientiane, Laos - (VTE);Wuhan, China - (WUH);Wuxi, China - (WUX);Xi'an, China - (XIY);Yerevan, Armenia - (EVN);Zhengzhou, China - (CGO);Zuzhou, China - (CSX);Amsterdam, Netherlands - (AMS);Athens, Greece - (ATH);Barcelona, Spain - (BCN);Belgrade, Serbia - (BEG);Berlin, Germany - (TXL);Brussels, Belgium - (BRU);Bucharest, Romania - (OTP);Budapest, Hungary - (BUD);Chișinău, Moldova - (KIV);Copenhagen, Denmark - (CPH);Cork, Ireland - (ORK);Dublin, Ireland - (DUB);Düsseldorf, Germany - (DUS);Edinburgh, United Kingdom - (EDI);Frankfurt, Germany - (FRA);Geneva, Switzerland - (GVA);Gothenburg, Sweden - (GOT);Hamburg, Germany - (HAM);Helsinki, Finland - (HEL);Istanbul, Turkey - (IST);Kyiv, Ukraine - (KBP);Lisbon, Portugal - (LIS);London, United Kingdom - (LHR);Luxembourg City, Luxembourg - (LUX);Madrid, Spain - (MAD);Manchester, United Kingdom - (MAN);Marseille, France - (MRS);Milan, Italy - (MXP);Moscow, Russia - (DME);Munich, Germany - (MUC);Nicosia, Cyprus - (LCA);Oslo, Norway - (OSL);Paris, France - (CDG);Prague, Czech Republic - (PRG);Reykjavík, Iceland - (KEF);Riga, Latvia - (RIX);Rome, Italy - (FCO);Saint Petersburg, Russia - (LED);Sofia, Bulgaria - (SOF);Stockholm, Sweden - (ARN);Tallinn, Estonia - (TLL);Thessaloniki, Greece - (SKG);Vienna, Austria - (VIE);Vilnius, Lithuania - (VNO);Warsaw, Poland - (WAW);Zagreb, Croatia - (ZAG);Zürich, Switzerland - (ZRH);Arica, Chile - (ARI);Asunción, Paraguay - (ASU);Bogotá, Colombia - (BOG);Buenos Aires, Argentina - (EZE);Curitiba, Brazil - (CWB);Fortaleza, Brazil - (FOR);Guatemala City, Guatemala - (GUA);Lima, Peru - (LIM);Medellín, Colombia - (MDE);Panama City, Panama - (PTY);Porto Alegre, Brazil - (POA);Quito, Ecuador - (UIO);Rio de Janeiro, Brazil - (GIG);São Paulo, Brazil - (GRU);Santiago, Chile - (SCL);Willemstad, Curaçao - (CUR);St. George's, Grenada - (GND);Amman, Jordan - (AMM);Baghdad, Iraq - (BGW);Baku, Azerbaijan - (GYD);Beirut, Lebanon - (BEY);Doha, Qatar - (DOH);Dubai, United Arab Emirates - (DXB);Kuwait City, Kuwait - (KWI);Manama, Bahrain - (BAH);Muscat, Oman - (MCT);Ramallah - (ZDM);Riyadh, Saudi Arabia - (RUH);Tel Aviv, Israel - (TLV);Ashburn, VA, United States - (IAD);Atlanta, GA, United States - (ATL);Boston, MA, United States - (BOS);Buffalo, NY, United States - (BUF);Calgary, AB, Canada - (YYC);Charlotte, NC, United States - (CLT);Chicago, IL, United States - (ORD);Columbus, OH, United States - (CMH);Dallas, TX, United States - (DFW);Denver, CO, United States - (DEN);Detroit, MI, United States - (DTW);Honolulu, HI, United States - (HNL);Houston, TX, United States - (IAH);Indianapolis, IN, United States - (IND);Jacksonville, FL, United States - (JAX);Kansas City, MO, United States - (MCI);Las Vegas, NV, United States - (LAS);Los Angeles, CA, United States - (LAX);McAllen, TX, United States - (MFE);Memphis, TN, United States - (MEM);Mexico City, Mexico - (MEX);Miami, FL, United States - (MIA);Minneapolis, MN, United States - (MSP);Montgomery, AL, United States - (MGM);Montréal, QC, Canada - (YUL);Nashville, TN, United States - (BNA);Newark, NJ, United States - (EWR);Norfolk, VA, United States - (ORF);Omaha, NE, United States - (OMA);Philadelphia, United States - (PHL);Phoenix, AZ, United States - (PHX);Pittsburgh, PA, United States - (PIT);Port-Au-Prince, Haiti - (PAP);Portland, OR, United States - (PDX);Queretaro, MX, Mexico - (QRO);Richmond, Virginia - (RIC);Sacramento, CA, United States - (SMF);Salt Lake City, UT, United States - (SLC);San Diego, CA, United States - (SAN);San Jose, CA, United States - (SJC);Saskatoon, SK, Canada - (YXE);Seattle, WA, United States - (SEA);St. Louis, MO, United States - (STL);Tampa, FL, United States - (TPA);Toronto, ON, Canada - (YYZ);Vancouver, BC, Canada - (YVR);Tallahassee, FL, United States - (TLH);Winnipeg, MB, Canada - (YWG);Adelaide, SA, Australia - (ADL);Auckland, New Zealand - (AKL);Brisbane, QLD, Australia - (BNE);Melbourne, VIC, Australia - (MEL);Noumea, New caledonia - (NOU);Perth, WA, Australia - (PER);Sydney, NSW, Australia - (SYD)".split(";"); let area = data.split("colo=")[1].split("\n")[0]; for (var i = 0; i < areas.length; i++) { if (areas[i].indexOf(area) != -1) { document.getElementById("cdn").innerHTML = areas[i]; break; } } } }) } $(document).ready(function() { getCDNinfo(); //页面加载完毕就获取CDN信息 }); </script>好了，下面就可以看到你当前访问所使用的节点了！
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