SmartDNS Network Test Report

Server 10.0.0.254 · March 17, 2026 · 199 DNS resolution tests + 20 download speed tests

Network Architecture

China Telecom local line: 80 Mbps cap — used for China domains (resolved via 114.114.114.114)

SD-WAN Singapore exit: 15 Mbps cap — used for international + GFW-blocked domains (resolved via 8.8.8.8)

DNS split routing: SmartDNS on 10.0.0.254 routes 117,924 China domains to China DNS, everything else to Google DNS via SD-WAN SG.

Why First Page Load Feels Slow (uncached international sites)

Every new international HTTPS connection requires 3 sequential round-trips through SD-WAN Singapore (~120ms each):

DNS lookup ~120ms + TCP connect ~120ms + TLS handshake ~120ms = ~360ms minimum before first byte

After first visit: DNS is cached by SmartDNS (0ms), browser caches TLS session (0ms). Repeat visits drop to ~120ms TTFB. This is inherent to routing through Singapore — not a DNS config issue.

Is 8.8.8.8 safe from Singapore?

Yes. DNS queries to 8.8.8.8 route through SD-WAN → exit Singapore → hit Google DNS. No GFW exposure. Google DNS sees a Singapore source IP, returns SG/APAC-edge server IPs. Since HTTP traffic also exits through Singapore, the resolved IPs and the exit point match — optimal routing.

China Domains — DNS (70 tested)

Resolved70/70 (100%)
Routed to China edge68/70 (97%)
Anomalies2 (didi, xpeng use global CDN)

International — DNS (69 tested)

Resolved68/69 (99%)
Routed to non-China edge64/69 (93%)
Anomalies4 (in china-domains.txt — correct)

GFW-Blocked — DNS (60 tested)

Resolved60/60 (100%)
Routed to non-China edge60/60 (100%)
Anomalies0

Download Speed — China CDN

Pipe capacity80 Mbps (China Telecom)
Peak measured74.5 Mbps
Avg speed29.3 Mbps
Avg TTFB291 ms
Util:
93%
of 80M

Download Speed — International

Pipe capacity15 Mbps (SD-WAN SG)
Peak measured9.9 Mbps
Avg speed6.2 Mbps
Avg TTFB536 ms
Util:
66%
of 15M

Download Speed — GFW-Blocked

Pipe15 Mbps (SD-WAN SG)
Peak measured1.1 Mbps
Avg speed0.6 Mbps
Avg TTFB877 ms
Util:
7%
of 15M

Routing Anomalies (6 of 199)

apple.com, microsoft.com, adobe.com, amd.com — In felixonmars china-domains.txt because they operate China CDN edges. SmartDNS correctly routes to China DNS → China-edge IPs. This is optimal — users get local CDN speed on China Telecom (80M) instead of SD-WAN (15M).
didi.com — Uses AWS global CDN. China DNS (114DNS) returns AWS Montreal IP. Suboptimal but functional.
xpeng.com — Uses HK-based CDN. China DNS returns HK edge. Fine for latency from Guangdong.
Speed Tests (20)
DNS Resolution (199)
Resource Category DNS (ms) Connect (ms) TLS (ms) TTFB (ms) Speed (Mbps) Size (MB) Total (ms) Server IP HTTP
QQ Installer (Tencent CDN, ~200MB)china4.038.073.0153.074.45203.6822949.0113.105.162.137200
npmmirror Express (Aliyun, 55KB)china4.032.067.0132.01.130.05394.0183.60.240.237200
npmmirror TypeScript (Aliyun, ~6MB)china4.033.070.0177.041.555.491109.014.29.50.208200
Tsinghua Mirror (CERNET)china60.0428.0175.0694.00.00.0694.0101.6.15.130404
Taobao Node.js Mirror (~25MB)china0000000-timeout
ByteDance CDN lodash (73KB)china4.034.074.0213.00.010.0213.014.29.48.212404
QQ Linux DEB (Tencent, ~100MB)china60.0134.082.0378.00.00.0569.0124.225.132.11404
Cloudflare Speed 10MBinternational4.097.0199.0419.06.959.5411504.0162.159.140.220200
Cloudflare Speed 5MBinternational4.099.0200.0542.08.54.774706.0162.159.140.220200
Cloudflare CDN three.js (600KB)international4.098.0200.0410.06.110.58790.0104.17.24.14200
jsDelivr lodash (73KB)international4.098.0191.0397.01.150.07507.0151.101.193.229200
npmjs TypeScript (6MB)international4.098.0201.0429.09.935.494641.0104.16.6.34200
Ubuntu zsync (Canonical, ~4MB)international4.0252.0501.01018.04.383.977609.0185.125.189.137200
Hetzner Speed Test 1GB (capped 30s)international0000000-timeout
Google Chrome DEB (~100MB)gfw-blocked0000000-timeout
GitHub Raw contentgfw-blocked4.097.0194.0684.00.030.0684.0185.199.111.133200
Wikipedia image (200KB)gfw-blocked125.0217.0192.0753.00.750.091002.0103.102.166.240200
GitHub codeload Express (200KB)gfw-blocked61.0156.0202.0789.01.070.141080.020.205.243.165200
GitHub Releases asset (test)gfw-blocked253.0345.0195.01629.00.00.01629.0185.199.111.133401
Google connectivity check (latency only)gfw-blocked4.0131.0272.0530.00.00.0530.0142.250.197.68204
Domain Category Resolved IP RTT (ms) Edge City Edge Country ISP/CDN Route
www.baidu.comchina183.2.172.17-GuangzhouChinaChinanet✓
www.taobao.comchina183.60.205.74-GuangzhouChinaChinanet✓
www.jd.comchina119.147.159.135-GuangzhouChinaCHINANET Guangdong province network✓
www.tmall.comchina113.108.75.110-GuangzhouChinaChinanet✓
www.qq.comchina121.14.77.221-GuangzhouChinaChina Telecom✓
www.weibo.comchina106.63.15.9-HaidianChinaChina Telecom✓
www.bilibili.comchina14.17.92.74-GuangzhouChinaCHINANET Guangdong province network✓
www.douyin.comchina183.61.231.233-GuangzhouChinaCHINANET Guangdong province network✓
www.zhihu.comchina14.116.174.67-ShenzhenChinaChinanet✓
www.163.comchina183.61.231.229-GuangzhouChinaCHINANET Guangdong province network✓
www.sohu.comchina183.60.163.148-GuangzhouChinaCHINANET Guangdong province network✓
www.sina.com.cnchina113.96.23.67-GuangzhouChinaChinanet✓
www.alipay.comchina113.96.23.67-GuangzhouChinaChinanet✓
www.meituan.comchina103.37.152.41-BeijingChinaChina Unicom Beijing Province Network✓
www.dianping.comchina202.90.108.57-ChaowaiChinaChina Unicom Shanghai network✓
www.ctrip.comchina14.215.41.61-GuangzhouChinaChinanet✓
www.suning.comchina183.2.175.108-GuangzhouChinaChinanet✓
www.pinduoduo.comchina150.158.224.195-ShanghaiChinaShenzhen Tencent Computer Systems Company Limited✓
www.xiaomi.comchina220.181.52.116-BeijingChinaIDC, China Telecommunications Corporation✓
www.huawei.comchina183.61.178.95-GuangzhouChinaCHINANET Guangdong province network✓
www.tencent.comchina14.116.174.67-ShenzhenChinaChinanet✓
www.bytedance.comchina113.108.75.59-GuangzhouChinaChinanet✓
www.ifeng.comchina121.12.174.56-ZhongshanChinaGuangdong Network of ChinaTelecom✓
www.csdn.netchina123.129.227.90-BeijingChinaCHINA UNICOM China169 Backbone✓
www.cnblogs.comchina120.26.28.150-HangzhouChinaHangzhou Alibaba Advertising Co., Ltd.✓
www.jianshu.comchina39.98.74.233-BeijingChinaHangzhou Alibaba Advertising Co✓
www.douban.comchina140.143.177.206-BeijingChinaShenzhen Tencent Computer Systems Company Limited✓
www.zhaopin.comchina113.240.66.207-QingyuanChinaNo.293, Wanbao Avenue✓
www.51job.comchina101.91.143.71-ShanghaiChinaChina Telecom (Group)✓
www.cctv.comchina14.17.91.180-GuangzhouChinaCHINANET Guangdong province network✓
www.people.com.cnchina59.37.89.155-GuangzhouChinaChinanet✓
www.xinhuanet.comchina103.27.27.75-GuangzhouChinaGuangdong Cable Corporation Limited✓
www.chinadaily.com.cnchina124.225.5.168-HaikouChinaHainan Network of ChinaTelecom✓
www.caixin.comchina59.36.97.249-ShenzhenChinaCHINANET Guangdong province network✓
www.eastmoney.comchina171.108.215.116-LiuchowChinaChina Telecom✓
www.hexun.comchina116.196.150.210-HangzhouChinaJHWA✓
www.cnstock.comchina124.225.96.30-SuzhouChinaHainan Network of ChinaTelecom✓
www.sse.com.cnchina202.122.113.73-HongkouChinaShanghai Information Network Co., Ltd.✓
www.szse.cnchina59.36.189.138-ShenzhenChinaChinanet✓
www.icbc.com.cnchina59.37.89.65-GuangzhouChinaChinanet✓
www.ccb.comchina124.126.72.25-JinrongjieChinaChina Networks Inter-Exchange✓
www.boc.cnchina36.102.224.177-HangzhouChinaChinanet✓
www.abchina.comchina59.37.89.155-GuangzhouChinaChinanet✓
www.cmbchina.comchina116.7.243.51-GuangzhouChinaChinanet✓
www.bankcomm.comchina124.74.244.2-BeijingChinaChina Telecom (Group)✓
www.spdb.com.cnchina103.179.78.39-ChangqiaoChinaShanghai Pudong Development Bank Co., Ltd.✓
www.cmbc.com.cnchina14.215.41.142-GuangzhouChinaChinanet✓
www.citicbank.comchina27.148.164.162-WenquanChinaChinanet✓
www.iqiyi.comchina59.36.206.245-GuangzhouChinaChinanet✓
www.youku.comchina106.11.43.71-HangzhouChinaHangzhou Alibaba Advertising Co✓
www.mgtv.comchina124.225.10.148-HaikouChinaHainan Network of ChinaTelecom✓
v.qq.comchina113.219.185.92-QingyuanChinaHengyang✓
www.le.comchina183.61.173.85-GuangzhouChinaCHINANET Guangdong province network✓
www.kuaishou.comchina103.102.202.144-BeijingChinaKUAISHOU✓
www.ximalaya.comchina171.108.213.60-LiuchowChinaChina Telecom✓
www.kugou.comchina59.37.89.155-GuangzhouChinaChinanet✓
www.netease.comchina111.124.195.32-GuiyangChinaChina Telecom✓
music.163.comchina183.2.175.108-GuangzhouChinaChinanet✓
www.ele.mechina59.82.44.163-HangzhouChinaHangzhou Alibaba Advertising Co✓
www.didi.comchina3.33.251.168-MontrealCanadaAmazon.com, Inc.⚠
www.nio.cnchina116.196.150.210-HangzhouChinaJHWA✓
www.xpeng.comchina163.181.35.203-Hong KongHong KongZhejiang Taobao Network Co., Ltd⚠
www.li.autochina106.13.245.14-JinrongjieChinaBaidu✓
www.geely.comchina111.124.67.139-GuiyangChinaChina Telecom✓
www.byd.comchina113.16.214.74-LiuchowChinaCHINATELECOM Guangxi Nanning IDC networkdescr: Nanning, Guangxi Province, P.R.✓
www.haier.comchina222.132.143.106-JinanChinaCNC Group CHINA169 Shandong Province Network✓
www.lenovo.com.cnchina171.109.111.150-LiuchowChinaChina Telecom✓
www.oppo.comchina116.31.102.53-ShenzhenChinaChinanet✓
www.vivo.comchina220.181.158.193-BeijingChinaIDC, China Telecommunications Corporation✓
www.honor.comchina27.221.14.166-JinanChinaChina Unicom Shandong Province Network✓
www.apple.cominternational106.4.158.58-TaohuaChinaChinanet⚠
www.microsoft.cominternational115.152.251.229-TaohuaChinaChinanet⚠
www.amazon.cominternational54.230.211.213-Los AngelesUnited StatesAmazon.com, Inc.✓
www.netflix.cominternational52.12.247.40-PortlandUnited StatesAmazon.com, Inc.✓
www.github.cominternational20.205.243.166-SingaporeSingaporeMicrosoft Corporation✓
www.stackoverflow.cominternational198.252.206.1-New YorkUnited StatesCloudflare, Inc.✓
www.cloudflare.cominternational104.16.124.96-TorontoCanadaCloudflare, Inc.✓
www.aws.amazon.cominternational99.86.20.26-SingaporeSingaporeAmazon.com✓
azure.microsoft.cominternational95.101.194.17-Ballerup MunicipalityDenmarkAkamai Technologies✓
cloud.google.cominternational142.250.198.174-Mountain ViewUnited StatesGoogle LLC✓
www.oracle.cominternational23.37.192.89-BerlinGermanyAkamai Technologies, Inc.✓
www.ibm.cominternational23.63.120.170-BerlinGermanyAkamai Technologies✓
www.salesforce.cominternational23.220.75.179-Los AngelesUnited StatesAkamai International B.V.✓
www.adobe.cominternational27.155.111.203-WenquanChinaFuzhou⚠
www.dropbox.cominternational162.125.85.18-Neihu DistrictTaiwanDropbox, Inc.✓
www.zoom.usinternational170.114.52.2-San JoseUnited StatesCloudflare London, LLC✓
www.slack.cominternational35.73.126.78-TokyoJapanAmazon.com, Inc.✓
www.notion.sointernational208.103.161.2-San FranciscoUnited StatesNotion Labs, Inc.✓
www.figma.cominternational52.222.244.111-San JoseUnited StatesAmazon.com, Inc.✓
www.canva.cominternational104.16.102.112-TorontoCanadaCloudflare, Inc.✓
www.spotify.cominternational151.101.195.42-MontrealCanadaFastly, Inc.✓
www.reddit.cominternational151.101.129.140-MontrealCanadaFastly, Inc.✓
www.wikipedia.orginternational103.102.166.224-San FranciscoUnited StatesWikimedia Foundation Inc.✓
www.bbc.cominternational151.101.64.81-MontrealCanadaFastly, Inc.✓
www.cnn.cominternational151.101.195.5-MontrealCanadaFastly, Inc.✓
www.nytimes.cominternational151.101.129.164-MontrealCanadaFastly, Inc.✓
www.reuters.cominternational13.33.183.77-New YorkUnited StatesAmazon.com, Inc.✓
www.bloomberg.cominternational151.101.193.73-MontrealCanadaFastly, Inc.✓
www.wsj.cominternational13.35.186.10-Hong KongHong KongAmazon.com, Inc.✓
www.ft.cominternational151.101.130.46-MontrealCanadaFastly, Inc.✓
www.economist.cominternational104.18.42.19-TorontoCanadaCloudflare, Inc.✓
www.forbes.cominternational151.101.1.55-MontrealCanadaFastly, Inc.✓
www.techcrunch.cominternational192.0.66.220-San FranciscoUnited StatesAutomattic, Inc✓
www.wired.cominternational3.167.212.50-Los AngelesUnited StatesAmazon.com, Inc.✓
www.theverge.cominternational151.101.89.91-OsakaJapanFastly, Inc.✓
www.arstechnica.cominternational18.220.188.255-DublinUnited StatesAmazon.com, Inc.✓
www.hbr.orginternational54.204.9.49-AshburnUnited StatesAmazon.com, Inc.✓
www.mckinsey.cominternational23.34.46.217-Ballerup MunicipalityDenmarkAkamai Technologies, Inc.✓
www.bain.cominternational172.64.154.43-TorontoCanadaCloudflare, Inc.✓
www.bcg.cominternational104.81.3.58-BerlinGermanyAkamai Technologies✓
www.deloitte.cominternational23.34.42.3-Ballerup MunicipalityDenmarkAkamai Technologies, Inc.✓
www.pwc.cominternational184.24.85.142-TaipeiTaiwanAkamai Technologies, Inc.✓
www.ey.cominternational13.107.213.73-TorontoCanadaMicrosoft Corporation✓
www.kpmg.cominternational23.220.75.184-Los AngelesUnited StatesAkamai International B.V.✓
www.stripe.cominternational3.115.61.96-TokyoJapanAmazon Technologies Inc.✓
www.shopify.cominternational172.64.145.93-TorontoCanadaCloudflare, Inc.✓
www.paypal.cominternational156.59.146.2-Hong KongHong KongZenlayer (Singapore) PTE. LTD✓
www.visa.cominternational104.18.14.19-TorontoCanadaCloudflare, Inc.✓
www.mastercard.cominternational104.81.8.75-BerlinGermanyAkamai Technologies✓
www.jpmorgan.cominternational23.220.75.180-Los AngelesUnited StatesAkamai International B.V.✓
www.goldmansachs.cominternational104.81.13.170-BerlinGermanyAkamai Technologies✓
www.morganstanley.cominternational104.85.50.217-ParisFranceAkamai Technologies✓
www.blackrock.cominternational95.101.249.34-ManchesterUnited KingdomAkamai Technologies✓
www.fidelity.cominternational23.210.26.162-TokyoJapanAkamai International B.V.✓
www.schwab.cominternational23.192.237.200-AubervilliersFranceAkamai International B.V.✓
www.vanguard.cominternational23.212.62.205-San JoseUnited StatesAkamai International B.V.✓
www.robinhood.cominternational18.244.214.54-San JoseUnited StatesAmazon.com, Inc.✓
www.nvidia.cominternational23.220.75.183-Los AngelesUnited StatesAkamai International B.V.✓
www.amd.cominternational115.152.251.46-TaohuaChinaChinanet⚠
www.intel.cominternational23.34.42.40-Ballerup MunicipalityDenmarkAkamai Technologies, Inc.✓
www.tsmc.cominternational172.66.0.3-TorontoCanadaCloudflare, Inc.✓
www.samsung.cominternational173.223.92.29-Tseung Kwan OHong KongAkamai Technologies, Inc.✓
www.sony.cominternational23.220.75.177-Los AngelesUnited StatesAkamai International B.V.✓
www.nintendo.cominternational151.101.89.55-OsakaJapanFastly, Inc.✓
www.ea.cominternational23.37.192.193-BerlinGermanyAkamai Technologies, Inc.✓
www.steam.cominternational---NXDOMAIN/timeout-?
www.epicgames.cominternational104.18.21.94-TorontoCanadaCloudflare, Inc.✓
www.unity.cominternational34.107.202.109-Kansas CityUnited StatesGoogle LLC✓
www.unrealengine.cominternational104.18.21.177-TorontoCanadaCloudflare, Inc.✓
www.google.comgfw-blocked142.250.197.100-Mountain ViewUnited StatesGoogle LLC✓
www.youtube.comgfw-blocked142.250.197.46-Mountain ViewUnited StatesGoogle LLC✓
www.facebook.comgfw-blocked157.240.199.35-Chai WanHong KongFacebook, Inc.✓
www.twitter.comgfw-blocked151.101.2.146-MontrealCanadaFastly, Inc.✓
www.instagram.comgfw-blocked157.240.199.174-Chai WanHong KongFacebook, Inc.✓
www.whatsapp.comgfw-blocked157.240.199.60-Chai WanHong KongFacebook, Inc.✓
web.telegram.orggfw-blocked149.154.167.99-LondonUnited KingdomTelegram Messenger Amsterdam Network✓
www.signal.orggfw-blocked104.18.10.47-TorontoCanadaCloudflare, Inc.✓
www.discord.comgfw-blocked162.159.128.233-TorontoCanadaCloudflare, Inc.✓
www.line.megfw-blocked3.175.207.30-Hong KongHong KongAmazon.com, Inc.✓
www.tiktok.comgfw-blocked23.202.34.219-Hong KongHong KongAkamai International B.V.✓
www.snapchat.comgfw-blocked34.149.46.130-Kansas CityUnited StatesGoogle LLC✓
www.pinterest.comgfw-blocked23.15.141.26-Tseung Kwan OHong KongAkamai Technologies, Inc.✓
www.tumblr.comgfw-blocked192.0.77.40-San FranciscoUnited StatesAutomattic, Inc✓
www.quora.comgfw-blocked162.159.153.247-TorontoCanadaCloudflare, Inc.✓
www.medium.comgfw-blocked162.159.152.4-TorontoCanadaCloudflare, Inc.✓
www.substack.comgfw-blocked172.64.150.56-TorontoCanadaCloudflare, Inc.✓
www.wordpress.comgfw-blocked192.0.78.13-San FranciscoUnited StatesAutomattic, Inc✓
www.blogger.comgfw-blocked142.250.199.73-Mountain ViewUnited StatesGoogle LLC✓
news.ycombinator.comgfw-blocked209.216.230.207-San DiegoUnited StatesM5 Computer Security✓
www.gmail.comgfw-blocked142.250.197.37-Mountain ViewUnited StatesGoogle LLC✓
mail.google.comgfw-blocked142.250.197.133-Mountain ViewUnited StatesGoogle LLC✓
drive.google.comgfw-blocked142.250.197.142-Mountain ViewUnited StatesGoogle LLC✓
docs.google.comgfw-blocked142.250.198.46-Mountain ViewUnited StatesGoogle LLC✓
maps.google.comgfw-blocked142.250.197.78-Mountain ViewUnited StatesGoogle LLC✓
translate.google.comgfw-blocked142.250.198.142-Mountain ViewUnited StatesGoogle LLC✓
scholar.google.comgfw-blocked64.233.188.103-Chang-huaTaiwanGoogle LLC✓
play.google.comgfw-blocked142.250.199.206-Mountain ViewUnited StatesGoogle LLC✓
calendar.google.comgfw-blocked142.250.197.46-Mountain ViewUnited StatesGoogle LLC✓
www.twitch.tvgfw-blocked151.101.2.214-MontrealCanadaFastly, Inc.✓
www.dailymotion.comgfw-blocked195.8.215.137-ParisFranceDailymotion S.A.✓
vimeo.comgfw-blocked162.159.128.61-TorontoCanadaCloudflare, Inc.✓
www.soundcloud.comgfw-blocked3.175.207.6-Hong KongHong KongAmazon.com, Inc.✓
www.perplexity.aigfw-blocked104.18.26.48-TorontoCanadaCloudflare, Inc.✓
claude.aigfw-blocked160.79.104.10-San FranciscoUnited StatesAnthropic, PBC✓
www.openai.comgfw-blocked172.64.154.211-TorontoCanadaCloudflare, Inc.✓
chat.openai.comgfw-blocked172.64.150.28-TorontoCanadaCloudflare, Inc.✓
gemini.google.comgfw-blocked142.250.199.238-Mountain ViewUnited StatesGoogle LLC✓
www.anthropic.comgfw-blocked160.79.104.10-San FranciscoUnited StatesAnthropic, PBC✓
huggingface.cogfw-blocked54.230.71.2-Hong KongHong KongAmazon.com, Inc.✓
www.nytimes.comgfw-blocked151.101.129.164-MontrealCanadaFastly, Inc.✓
www.washingtonpost.comgfw-blocked184.84.55.98-Hong KongHong KongAkamai International B.V.✓
www.theguardian.comgfw-blocked151.101.193.111-MontrealCanadaFastly, Inc.✓
www.bbc.co.ukgfw-blocked151.101.64.81-MontrealCanadaFastly, Inc.✓
www.dw.comgfw-blocked23.66.157.19-Tseung Kwan OHong KongAkamai Technologies, Inc.✓
www.voanews.comgfw-blocked23.32.20.41-Hong KongHong KongAkamai International, BV✓
www.rfa.orggfw-blocked23.219.172.105-Hong KongHong KongAkamai International B.V.✓
www.amnesty.orggfw-blocked141.193.213.21-AustinUnited StatesCloudflare London, LLC✓
www.hrw.orggfw-blocked23.185.0.2-San FranciscoUnited StatesFastly, Inc.✓
www.rsf.orggfw-blocked104.25.93.108-TorontoCanadaCloudflare, Inc.✓
www.vpngate.netgfw-blocked130.158.75.36-TsukubaJapanUniversity of Tsukuba✓
www.torproject.orggfw-blocked204.8.99.146-WinchesterUnited StatesQuintex Alliance Consulting✓
www.protonvpn.comgfw-blocked185.159.159.142-Plan-les-OuatesSwitzerlandProton AG✓
www.expressvpn.comgfw-blocked13.33.183.28-New YorkUnited StatesAmazon.com, Inc.✓
www.nordvpn.comgfw-blocked104.19.159.190-TorontoCanadaCloudflare, Inc.✓
www.surfshark.comgfw-blocked104.18.121.34-TorontoCanadaCloudflare, Inc.✓
www.mullvad.netgfw-blocked45.83.223.209-MalmoSweden31173 Services AB✓
www.wireguard.comgfw-blocked192.248.189.215-Frankfurt am MainGermanyThe Constant Company, LLC✓
www.github.iogfw-blocked185.199.110.153-San FranciscoUnited StatesFastly, Inc.✓
gitlab.comgfw-blocked172.65.251.78-TorontoCanadaCloudflare, Inc.✓

Glossary

TTFB (Time To First Byte): Time from sending request to receiving the first byte of response. Includes DNS + TCP + TLS + server processing. This is the "blank screen" wait time.

DNS RTT: Round-trip time for SmartDNS to resolve the domain. 0ms means served from cache.

Connect: TCP handshake time (1 round-trip to the server).

TLS: HTTPS encryption handshake time (1-2 round-trips on top of TCP).

Speed (Mbps): Megabits per second sustained during download. Capped by pipe: 80M China Telecom, 15M SD-WAN SG.