Web Ping: Difference between revisions

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Web Ping (edit)

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Text replacement - ": Image:Owl icon.jpg " to "{{Tips}} "

Planetoid

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-網站監測與網站連線測試，當網站臨時無法連線時，可以檢查是否是個別 ISP 或 網路環境造成的網路連線問題。  (Back to [[Network problem]])
+[[Test connectivity for the web service]]: 網站監測與網站連線測試，當網站臨時無法連線時，可以檢查是否是個別 ISP 或 網路環境造成的網路連線問題。  (Back to [[Network problem]])
 == 網站連線測試 ==
@@ Line 31: / Line 31: @@
 * [http://www.just-ping.com/ just ping]: Free online ping from 50 locations worldwide(includes China) {{exclaim}} 如果網站關閉 {{Acronym | acronym= ICMP | def= Internet Control Message Protocol}} 回應，會導致測試結果顯示為「Packets lost (100%)」，但是其實網站是可以連線的。{{access | date = 2013-05-13}}
-* ''out of service'' [http://wasitup.com/ was it up?]{{access | date=2012-02-05}}
+* [https://dnschecker.org/ DNS Checker - DNS Check Propagation Tool] {{access | date=2019-02-02}}
+* [https://www.uptrends.com/tools/uptime Website Availability Test - Uptrends] {{access | date=2020-03-11}}
+* [https://community.spiceworks.com/tools/website-down-check/ Website Down Checker: Down for everyone or Just you?] {{access | date=2022-06-18}}
 ==== 同時從世界各處測試網站連線 固定頻率自動執行監測 ====
-* {{Gd}} [https://uptimebutler.com/checks UptimeButler - Uptime monitoring software] 從 US, EU, Asia 三處中，選擇一處進行連線測試。介紹: [https://free.com.tw/uptimebutler/ UptimeButler 免費網站監控服務，無法連線時 Email、簡訊通知] {{access | date=2014-07-14}}
+* {{Gd}} [https://uptimerobot.com/ Uptime Robot] 免費與付費版均有。主要從美國伺服器連線測試<ref>[https://uptimerobot.com/locations Locations and IPs | Uptime Robot]</ref>。免費版監控週期 5 分鐘、共 50 個監控規則的限制。 {{access | date=2022-07-14}}
 * [http://www.alertra.com/ Alertra Web Site Monitoring]
@@ Line 40: / Line 45: @@
 ** (2) ''免費版未提供 2014-02-25'' 可查看網頁回應：輸入網頁網址，然後點選 Response ->  View Extended Data (Headers, content and more) 可以看到網頁內容，不過中文內容會亂碼。 另外提供 View Packet Capture (.cap file in pcap/Wireshark format)
+* [http://jetpack.me/support/monitor/ Monitor — Jetpack for WordPress] 教學: [http://www.freegroup.org/2014/04/jetpack-monitor/ Jetpack Monitor 免費 24/7 網站監測服務，WordPress 無法連線自動發送提醒 (免費資源網路社群)]{{access | date=2014-04-05}}
-* [http://jetpack.me/support/monitor/ Monitor — Jetpack for WordPress] 教學: [http://www.freegroup.org/2014/04/jetpack-monitor/ Jetpack Monitor 免費 24/7 網站監測服務，WordPress 無法連線自動發送提醒 (免費資源網路社群)]{{access | date=2014-04-05}}
+* [https://pulsetic.com/ pulsetic] 免費與付費版均有。免費版監控週期 5 分鐘。無法設定要從世界哪一處進行連線測試。{{access | date=2022-04-08}}
 * [http://www.jiankongbao.com/ 监控宝] 從中國、歐美[http://www.jiankongbao.com/monitor 等處]連線測試 {{access | date=2014-07-14}}
@@ Line 51: / Line 57: @@
 * [http://www.websitepulse.com/ WebSitePulse] -> 1. [http://www.websitepulse.com/help/tools.php Free Website Test]: Test from (1)Seattle, WA (2)Munich, Germany (3)Brisbane, Australia 2. 選擇 Web Page Test，可概略呈現地網頁元素下載的所需時間
-* [http://internetsupervision.com/ InternetSupervision.com] 免費與付費版均有。如果要從不同地方連線測試 (Alternate city check false alarm prevention)，僅付費版提供。{{access | date=2016-07-19}}
+* [https://www.uptimedoctor.com/ Uptime Doctor] 免費與付費版均有。自北美、歐洲、亞洲等地方測試。 {{access | date=2017-05-31}}
-* [https://www.uptimedoctor.com/ Uptime Doctor] 免費與付費版均有。自北美、歐洲、亞洲等地方測試。 {{access | date=2017-05-31}}
+* [https://www.statuscake.com/ StatusCake] 免費與付費版均有。自世界各處伺服器<ref>[https://www.statuscake.com/kb/knowledge-base/what-locations-do-you-have/ What Locations Do You Have | Knowledge Base]</ref>隨機一處測試。免費版監控週期 5 分鐘、共 10 個監控規則的限制<ref>[https://www.statuscake.com/pricing/ Our Pricing | Yearly Website Monitoring Pricing | StatusCake | StatusCake - Website Monitoring]</ref>。。教學: [https://free.com.tw/free-website-monitoring-statuscake/ StatusCake 免費網站監控服務，斷線自動以 Email、簡訊、Skype 通知用戶] {{access | date=2018-10-08}}
-* [https://www.statuscake.com/ StatusCake] 免費與付費版均有。自世界各處伺服器<ref>[https://www.statuscake.com/kb/knowledge-base/what-locations-do-you-have/ What Locations Do You Have | Knowledge Base]</ref>隨機一處測試。免費版監控週期 5 分鐘。教學: [https://free.com.tw/free-website-monitoring-statuscake/ StatusCake 免費網站監控服務，斷線自動以 Email、簡訊、Skype 通知用戶] {{access | date=2018-09-14}}
+* ''$'' [https://onlineornot.com/ OnlineOrNot - Free Website and API Monitoring - OnlineOrNot]. Example of [https://hackernews.onlineornot.com/ Hacker News Status]
 * 軟體 [http://visualroute.visualware.com/ VisualRoute traceroute server: trace IP address, trace route, IP trace, IP address locations] 測試從VisualRoute到目標網站的連線能力 (含地圖)
@@ Line 67: / Line 73: @@
 * [http://www.jiankongbao.com/ 监控宝] [http://www.jiankongbao.com/labs/http HTTP工具] 從中國、歐美[http://www.jiankongbao.com/monitor 等處]連線測試 {{exclaim}} 如果連線逾時，網頁會很久沒有回應。 {{access | date = 2015-07-10}}
 * [http://ping.chinaz.com/ chinaz] 135 個檢測點 {{access | date = 2017-08-10}}
+* [https://dnschecker.org/ DNS Checker - DNS Check Propagation Tool] {{access | date = 2019-02-02}}
 * {{exclaim}} 使用時網站沒有反應 [http://www.just-ping.com/ just ping]: Free online ping from 50 locations worldwide(includes China) {{access | date = 2015-07-10}}
@@ Line 72: / Line 79: @@
 * [http://www.labnol.org/internet/blogging/test-website-blocked-in-china-or-accessible/3262/ How to Check If Your Website Is Blocked In China or Not]
-: [[Image:Owl icon.jpg]] 了解什麼是[http://zh.wikipedia.org/wiki/%E9%87%91%E7%9B%BE%E5%B7%A5%E7%A8%8B 中國的防火長城(GFW, Great Firewall of China)]？
+{{Tips}} 了解什麼是[http://zh.wikipedia.org/wiki/%E9%87%91%E7%9B%BE%E5%B7%A5%E7%A8%8B 中國的防火長城(GFW, Great Firewall of China)]？
 ==== 使用國外 VPN 服務測試網路連線 ====
@@ Line 82: / Line 89: @@
 === 分析網頁連線下載速度 ===
-* {{Gd}} [http://developer.yahoo.com/yslow/ Yahoo! YSlow] + [http://www.getfirebug.com/ Firebug] for {{Fx}}: [http://www.getfirebug.com/net.html Firebug and Network Monitoring] (說明: [http://briian.com/?p=5526 Firebug 幫網頁稱重量、測速度，抓出拖慢網站的元兇！　　【重灌狂人】])操作方式: 按{{kbd | key=F12}} 啟動Firebug, 然後切換到「網路」標籤
+分析網頁連線下載速度，並提供網站開發者建議的服務或軟體
-: http://farm3.static.flickr.com/2083/1776124036_800ff3441d_o.jpg
+[[Optimize webpage speed]]
-: Image hosted by [http://www.flickr.com/photos/planetoid/1776124036/ Flickr]
-* [http://www.fiddler2.com/fiddler2/ Fiddler Web Debugger - A free web debugging tool]
-: http://farm6.static.flickr.com/5213/5457161299_6410ae7c01.jpg
-: Image hosted by [http://www.flickr.com/photos/planetoid/5457161299/in/photostream/ flickr]
-* [http://www.httpwatch.com/ HttpWatch: An HTTP Viewer and HTTP Sniffer] for {{IE}} 6 & 7 & {{Fx}}
-** 介紹: [http://steachs.com/archives/1450 網頁診斷工具【HttpWatch Basic Edition】即時分析網頁瀏覽數據 for IE、Firefox]
-* [https://addons.mozilla.org/en-US/firefox/addon/httpfox/ HttpFox][http://code.google.com/p/httpfox/]  An HTTP analyzer addon for {{Fx}}
-* [http://tools.pingdom.com/fpt/ Pingdom Tools]([http://www.flickr.com/photos/planetoid/5096188393/ 圖例]): (a)測試網頁各元件載入時間(Full page test)，圖形化呈現載入時間長短，藉此觀察網頁效能、 (b)以及從Pingdom Tools網站到目標網站的連線檢查(Ping、trace route)
+=== Monitor HTTP request ===
-* [http://webwait.com/ WebWait - Benchmark Your Website] 網頁下載計時器
-* [http://www.websiteoptimization.com/ Web Site Optimization: Speed Up Your Site website opion web speed optimize web site performance company] --> Web Page Analyzer
-* [https://chrome.google.com/extensions/detail/ognampngfcbddbfemdapefohjiobgbdl Speed Tracer (by Google)] for {{Chrome}}
-* [http://www.webpagetest.org/ WebPagetest - Website Performance and Optimization Test]
-* [https://www.giftofspeed.com/ Test & Optimize Website Speed - GiftOfSpeed] 可以選擇從荷蘭、美國、英國、新加坡、德國其中一處連線測試。測試結果包含不同網頁元件下載所需時間。{{access | date = 2016-07-28}}
-==== Monitor HTTP request ====
 追蹤瀏覽器提出的網站網址要求(ex: URL of AJAX JSON)
 * [http://www.fiddler2.com/fiddler2/ Fiddler Web Debugger - A free web debugging tool] for {{Win}}
@@ Line 113: / Line 98: @@
 * [http://www.httpwatch.com/ HttpWatch 8.5: Seamless HTTP monitoring for IE and Firefox] for {{IE}} & {{Fx}}
 * {{Chrome}} 工具 -> 開發人員工具 -> Network
-==== 分析網頁連線下載速度，並提供網站開發者建議的服務或軟體 ====
-* {{Gd}} [http://code.google.com/speed/page-speed/ Page Speed Home] for {{Fx}}
-* [https://developers.google.com/speed/pagespeed/insights PageSpeed Insights — Google Developers] offered by Google: [https://developers.google.com/speed/pagespeed/insights#url=www.google.com.tw&mobile=false Sample report] {{access | date= 2012-08-14}}
-** 教學: [http://briian.com/?p=6315 Google Page Speed 網站最佳化建議工具，讓網站更快、更省流量！]
-* Google chrome -> 工具 -> 開發人員工具 -> Audit。 提供網站開發者 Network utilzation, web page performance建議。
-* [http://www.slowcop.com Slowcop] {{access | date = 2011-03-17}} 教學: [http://www.freegroup.org/2011/03/slowcop/ Slowcop 網站測速工具，找出如何使網站開啟速度更快]
-* [http://gtmetrix.com/ GTmetrix] "Website Speed and Performance Optimization" {{access | date= 2012-08-14}}
-** 介紹: [http://freegroup.org/2010/07/gtmetrix/ GTmetrix 線上網頁速度檢測、分析工具，協助改善用戶經驗]
-* [http://www.webpagetest.org/ WebPagetest - Website Performance and Optimization Test] 介紹: [http://briian.com/?p=9069 WebPagetest 網頁連線、載入速度測試工具（支援 30 測試點、16 種瀏覽器、測試手機版與桌面版網頁） | 重灌狂人]
-* [https://www.dareboost.com/en/home DareBoost - Website Performance and Quality Test Tool] 輸入網址可以測試網頁效能與內容品質。看摘要內容不需要註冊會員，關掉它的提示還是可以進行測試。{{access | date = 2015-04-11}}
-相關頁面
-* [[Javascript#performance_issue:_compression_tools.2C_using_CDN | javascript 檔案壓縮或使用 CDN]]
-* [[CSS_tools#CSS_.E6.AA.94.E6.A1.88.E5.A3.93.E7.B8.AE | CSS 檔案壓縮]]
 === 觀察HTTP response status code(HTTP回應狀態代碼) ===
@@ Line 144: / Line 113: @@
 * [https://curl.haxx.se/docs/manpage.html curl] on {{Linux}} or {{Mac}} e.g. {{kbd | key = <nowiki>curl -v -o /dev/null https://www.slideshare.net</nowiki>}} <ref>[https://asciinema.org/a/89998 中華電信有線網路無法連到 slideshare 的測試 - asciinema]</ref>
-=== DNS檢查 ===
+=== DNS 檢查 ===
-* {{Gd}} [http://www.whatsmydns.net/ What's My DNS? Global DNS Propagation Checker] {{access | date = 2017-04-10}} 介紹: [http://www.freegroup.org/2011/05/whats-my-dns/ What’s My DNS? 從世界各地的伺服器，檢查網址 DNS 更新情形]
+websites
+* {{Gd}} [http://www.whatsmydns.net/ What's My DNS? Global DNS Propagation Checker] {{access | date = 2020-03-24}} 介紹: [http://www.freegroup.org/2011/05/whats-my-dns/ What’s My DNS? 從世界各地的伺服器，檢查網址 DNS 更新情形]
+* {{Gd}} [https://dnschecker.org/ DNS Checker - DNS Check Propagation Tool] 從世界各地的伺服器，檢查網址 DNS 解析 {{access | date = 2020-03-24}}
+* [https://www.nslookuptool.com/ Global DNS Propagation Checker - Nslookup Tool] 從世界各地的伺服器，檢查網址 DNS 解析，並顯示對應 IP
 * [http://www.intodns.com/ IntoDNS] "IntoDNS checks the health and configuration and provides DNS report and mail servers report." Quoted from official website. {{access | date = 2011-02-21}} {{exclaim}}不能檢查 subdomain
 * [http://www.dnscolos.com/free-dns-report.html Free DNS Report] {{access | date = 2017-04-10}}
-* [http://en.wikipedia.org/wiki/Nslookup nslookup] for {{Win}} & {{Linux}} syntax: {{kbd | key = nslookup ''domain.com''}}
 * SMTP [http://mxtoolbox.com/ MX Lookup Tool - Check your DNS MX Records online - MxToolbox] {{access | date = 2017-04-10}}
 * [http://www.dnsinspect.com/ DNS Inspect - Free DNS checking tool with IPv6 support] "checks your domain's servers for common DNS and mail errors and generates a report with explanations how to fix them."
+* [https://dnsflagday.net/ 2019 | DNS flag day] {{access | date = 2019-02-02}}
+* [https://dnscheck.norid.no/ Domain tester] {{access | date = 2019-05-06}}
 : other web ping: [http://www.fifi.org/services/ping fifi](ping, tracert... tools.), [http://www.maxmind.com/app/lookup lookup]
+tools
+* [http://en.wikipedia.org/wiki/Nslookup nslookup] for {{Win}} & {{Linux}} syntax: {{kbd | key = nslookup ''domain.com''}}
+* [http://osxdaily.com/2015/06/02/change-dns-command-line-mac-os-x/ How to Change DNS from Command Line of Mac OS X] on {{Mac}}
+* [https://superuser.com/questions/367969/how-can-i-direct-a-query-to-specific-dns-server command line - How can I direct a query to specific DNS server? - Super User] on {{Win}}
+* [https://www.computerhope.com/unix/unslooku.htm Linux nslookup command help and examples] on {{Linux}}
 === 反查IP或網域 ===
@@ Line 158: / Line 137: @@
 * [http://www.senderbase.org/ SenderBase]
+=== Domain Categorization ===
+* Cloudflare's categorization e.g. [https://radar.cloudflare.com/domains/feedback/apple.com Cloudflare Radar] of apple.com
+=== 偵測使用的 CDN ===
+偵測使用的 CDN ([https://zh.wikipedia.org/zh-tw/%E5%85%A7%E5%AE%B9%E5%82%B3%E9%81%9E%E7%B6%B2%E8%B7%AF 內容傳遞網路], Content Delivery Network或Content Distribution Network)
+* {{Gd}} [https://www.whatsmycdn.com/ What's My CDN?] 偵測 CDN 不能選 Global，可以選 By Region: Asia
+* [https://www.ultratools.com/tools/ipWhoisLookupResult WHOIS IP Lookup Tool | UltraTools]
+* [https://tools.keycdn.com/geo IP Location Finder - IP Lookup With Detailed Geolocation Data | KeyCDN Tools]
+references
+* [https://geekflare.com/find-cdn-used-on-site/ How to find Which CDN is Used in a Website?]
 == 無法網路連線 ==
+To distinguish which section met trouble
 # ping local IP
 # ping Gateway
 # check DNS...
-# (optional) ping the IP of external website (有些機器會關閉ICMP ECHO，讓我們無法Ping到它)
+# ping the remote IP of external website<ref>[https://www.wkb.idv.tw/moodle/mod/page/view.php?id=10467&lang=zh_tw IPv6_2017: IPv6連線互測-ping]</ref> (有些機器會關閉ICMP ECHO，讓我們無法Ping到它)
-distinguish which section met trouble
+#* {{Win}} keyin {{kbd | key=<nowiki>ping <IPv4></nowiki>}} e.g. {{kbd | key=<nowiki>ping 8.8.8.8</nowiki>}} (8.8.8.8 is the IP of [https://developers.google.com/speed/public-dns/docs/using?hl=zh-tw Google Public DNS])
+#* {{Win}} keyin {{kbd | key=<nowiki>ping -6 <IPv6></nowiki>}} e.g. {{kbd | key=<nowiki>ping -6 2001:4860:4860::8888</nowiki>}}
 == 無法連線到網路的測試步驟 ==
@@ Line 204: / Line 196: @@
 === 伺服器主機資訊或採用的技術 ===
+伺服器主機資訊或採用的技術，例如網站伺服器、 Javascript 框架、網頁框架、網頁字型 (web fonts)、程式語言等
 * {{Gd}} [http://builtwith.com/ BuiltWith Technology Lookup]
-** 使用方式: 線上輸入網址查詢或直接使用 bookmarklet <pre>javascript:location = 'https://builtwith.com/'+location.href.replace(/https?:\/\//i, "");</pre>
+** 使用方式: (1) [https://chrome.google.com/webstore/detail/builtwith-technology-prof/dapjbgnjinbpoindlpdmhochffioedbn?hl=zh-TW 瀏覽器擴充套件]、(2)線上輸入網址查詢、或 (3) 直接使用 bookmarklet <pre>javascript:location = 'https://builtwith.com/'+location.href.replace(/https?:\/\//i, "");</pre>
 ** 介紹:
 ** 查詢結果: e.g. [http://builtwith.com/techcrunch.com techcrunch.com Technology Profile of techcrunch.com] {{access | date= 2017-05-28}}
-* [https://wappalyzer.com/download wappalyzer] "Wappalyzer uncovers the technologies used on websites." Quoted from website. 詳: [https://wappalyzer.com/applications Web Applications] 清單。
-** 使用方式:安裝瀏覽器擴充套件或直接使用 bookmarklet。
+* [https://www.wappalyzer.com/ Wappalyzer - Identify technologies on websites] "Wappalyzer uncovers the technologies used on websites." Quoted from website.
+** 使用方式: (1) 安裝[https://chrome.google.com/webstore/detail/wappalyzer-technology-pro/gppongmhjkpfnbhagpmjfkannfbllamg?hl=zh-TW 瀏覽器擴充套件]、或 (2) 直接使用 bookmarklet。
 ** 介紹: [https://www.minwt.com/pc/17655.html 「Wappalyzer」網站照妖鏡！一鍵顯示網站所用的主機、平台、語言與框架|梅問題．教學網]
 ** 查詢結果: 如下圖
@@ Line 217: / Line 212: @@
 * [https://searchdns.netcraft.com/ Netcraft - Search Web by Domain] 可查詢伺服器主機的{{Acronym | acronym= OS | def= 作業系統(Operating system)}}、IP及上線時間(uptime)、採用的技術等資訊。
-** 使用方式: 線上輸入網址查詢或直接使用 bookmarklet <pre>javascript:location%20=%20'http://toolbar.netcraft.com/site_report?url='+escape(location);%20void%200</pre>
+** 使用方式: (1) 線上輸入網址查詢、或 (2) 直接使用 bookmarklet <pre>javascript:location%20=%20'http://toolbar.netcraft.com/site_report?url='+escape(location);%20void%200</pre>
 ** 介紹:
 ** 查詢結果: e.g. [http://toolbar.netcraft.com/site_report?url=techcrunch.com Site report for techcrunch.com]
@@ Line 232: / Line 227: @@
 Benchmark
 * [http://httparchive.org/index.php HTTP Archive] 從 Alexa 取得前 100萬名的網站網址清單，分析其網頁載入時間、使用的JS、圖片、字型所需載入檔案大小。{{access | date=2016-04-24}}
+=== 伺服器啟用 HTTP/2 ===
+檢查伺服器是否啟用 HTTP/2
+* [https://tools.keycdn.com/http2-test HTTP/2 Test - Verify HTTP/2 Support | KeyCDN Tools]
 === SSL Server Test ===
@@ Line 239: / Line 238: @@
 [[Monitor webpage content update | 追蹤網站內容更新的線上服務]]
-== references ==
+== References ==
 <references />

Web Ping: Difference between revisions

Web Ping (edit)

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