近期比较热门的是SpartanHost西雅图vps，原因是回程调整为了三网联通骨干直连，速度方面有较为大的提升，并且SpartanHost西雅图vps采用CNservers高防线路，拥有较为优质的防御能力所以一直比较被关注。但是SpartanHost西雅图vps全线目前一直处于缺货状态，即时补货也是“僧多粥少”难以满足应求。好在有另外一个商家可以替代，TMTHosting西雅图VPS服务器与SpartanHost西雅图vps是同机房同线路的（博主亲测了：TMTHosting西雅图20G高防VPS速度及综合性能2021最新测评(限时6折/三网联通直连)），对于美国三网联通回程优化VPS感兴趣可以关注。
同时目前还有一个新商家“白丝云”从事美国圣何塞机房的三网回程强制走联通AS4837线路的VPS销售，并且目前还有促销，年付低至了129元起！线路优势比较明显，电信联通去程CN2、移动去程CMI，三网回程均走联通骨干直连。就目前来说速度方面是有保障的，有兴趣的可以关注，特别是想试试美西三网联通回程优化线路的朋友可以试试！
一、白丝云圣何塞三网回程联通优化VPS套餐
- 美国圣何塞精品大陆优化BGP网络测试IP：38.94.111.151，https://test.idc.best/1000MB.test
| CPU | 内存 | SSD | IPv4/峰值带宽/流量 | 价格 | 链接 |
| 1核 | 512M | 10G | 1个/100Mbps/200GB | 129元/年 | 点击直达 |
| 1核 | 512M | 10G | 1个/200Mbps/500GB | 259元/年 | 点击直达 |
| 2核 | 1G | 20G | 1个/300Mbps/1TB | 449元/年 | 点击直达 |
| 3核 | 2G | 40G | 1个/300Mbps/2TB | 769元/年 | 点击直达 |
| 4核 | 4G | 80G | 1个/300Mbps/3TB | 299元/月 | 点击直达 |
| 5核 | 8G | 160G | 1个/300Mbps/4TB | 499元/月 | 点击直达 |
| 6核 | 16G | 240G | 1个/300Mbps/5TB | 849元/月 | 点击直达 |
二、白丝云圣何塞三网回程联通优化VPS速度及性能基本测评（转自商家）
1、白丝云圣何塞三网回程联通优化VPS基本信息及性能测试。E5-2697 v2处理器、KVM架构，分配IP支持解锁HBO！
-> System Information OS Release: CentOS Linux 7.9.2009 (x86_64) CPU Model: Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz 2.69 GHz CPU Cache Size: 16384 KB CPU Number: 1 vCPU Virt Type: KVM Memory Usage: 130.05 MB / 480.10 MB Swap Usage: 780 KB / 2.00 GB Disk Usage: 5.70 GB / 8.12 GB Boot Device: /dev/vda1 Load (1/5/15min): 0.00 0.00 0.00 CPU Usage: 0.0% used, 0.0% iowait, 0.0% steal Kernel Version: 5.4.98-1.el7.elrepo.x86_64 Network CC Method: bbr + fq -> Network Information IPV4 - IP Address: [US] 38.94.111.* IPV4 - ASN Info: 174 (COGENT-174 - Cogent Communications, US) IPV4 - Region: United States California Fremont -> Media Unlock Test HBO Now: Yes Bahamut Anime: No Abema.TV: No Princess Connect Re:Dive Japan: Yes BBC: No Bilibili China Mainland Only: No Bilibili Hongkong/Macau/Taiwan: No Bilibili Taiwan Only: No -> CPU Performance Test (Standard Mode, 3-Pass @ 30sec) 1 Thread Test: 813 Scores -> Memory Performance Test (Standard Mode, 3-Pass @ 30sec) 1 Thread - Read Test : 17125.42 MB/s 1 Thread - Write Test: 14338.23 MB/s -> Disk Speed Test (4K Block/1M Block, Direct-Write) Test Name Write Speed Read Speed 10MB-4K Block 51.2 MB/s (0.08 IOPS, 0.20 s) 53.6 MB/s (13088 IOPS, 0.20 s) 10MB-1M Block 1.0 GB/s (973 IOPS, 0.01 s) 1.4 GB/s (1315 IOPS, 0.01 s) 100MB-4K Block 46.5 MB/s (0.09 IOPS, 2.26 s) 65.1 MB/s (15886 IOPS, 1.61 s) 100MB-1M Block 1.4 GB/s (1296 IOPS, 0.08 s) 2.4 GB/s (2261 IOPS, 0.04 s) 1GB-4K Block 47.4 MB/s (0.09 IOPS, 22.14 s) 58.3 MB/s (14234 IOPS, 17.98 s) 1GB-1M Block 1.3 GB/s (1231 IOPS, 0.81 s) 2.1 GB/s (1992 IOPS, 0.50 s)
2、白丝云圣何塞三网回程联通优化VPS联通移动电信三网及亚太节点速度测试。基本都能跑满上下行300Mbps！
-> Speedtest.net Network Speed Test Node Name Upload Speed Download Speed Ping Latency Server Name Speedtest Default 34.87 MB/s 34.81 MB/s 18.40 ms Green House Data, Inc (United States Seattle, WA) China, Nanjing CU 34.47 MB/s 31.04 MB/s 153.55 ms China Unicom (China Nanjing) China, Shanghai CU 34.76 MB/s 35.67 MB/s 148.41 ms China Unicom 5G (China ShangHai) China, Hangzhou CT 34.93 MB/s 35.20 MB/s 153.02 ms China Telecom ZheJiang Branch (China Hangzhou) China, Nanjing CT 34.69 MB/s 35.34 MB/s 132.83 ms China Telecom JiangSu 5G (China Nanjing) China, Guangzhou CT Fail: Timeout Exceeded after 60 seconds China, Wuhan CT Fail: Timeout Exceeded after 60 seconds China, Shenyang CM 34.89 MB/s 35.04 MB/s 172.52 ms ChinaMobile, Liaoning Branch (China Shenyang) China, Hangzhou CM 34.41 MB/s 37.47 MB/s 165.83 ms China Mobile Group Zhejiang Co.,Ltd (China Hangzhou) China, Nanning CM 34.60 MB/s 38.09 MB/s 174.35 ms GX ChinaMobile (China Nanning) China, Lanzhou CM Fail: Timeout Exceeded after 60 seconds Hong Kong, CSL 34.07 MB/s 37.56 MB/s 152.40 ms CSL (Hong Kong Kwai Chung) Hong Kong, PCCW 33.97 MB/s 35.56 MB/s 150.51 ms STC (China Hong Kong) Korea, South Korea 34.90 MB/s 34.08 MB/s 145.94 ms kdatacenter.com (South Korea Seoul) Japan, GLBB 34.61 MB/s 32.73 MB/s 109.00 ms Allied Telesis Capital Corporation (Japan Fussa-shi) Taiwan, FET Fail: Timeout Exceeded after 60 seconds Taiwan, Chief 34.87 MB/s 35.43 MB/s 125.44 ms Chief Telecom (Taiwan Taoyuan) Taiwan, TWM 34.43 MB/s 37.05 MB/s 126.82 ms Taiwan Mobile (Taiwan Taoyuan) Singapore, Singtel 34.53 MB/s 35.64 MB/s 178.93 ms Singtel (Singapore Singapore) Singapore, M1 17.80 MB/s 34.62 MB/s 172.19 ms M1 Limited (Republic of Singapore Singapore) Singapore, NME 33.97 MB/s 34.89 MB/s 180.73 ms NewMedia Express (Republic of Singapore Singapore) USA, Century Link 26.34 MB/s 34.82 MB/s 19.15 ms CenturyLink (United States Seattle, WA)
3、白丝云圣何塞三网回程联通优化VPS三网回程路由追踪测试。三网回程都是走联通线路直连。
Traceroute to China, Beijing CU (TCP Mode, Max 30 Hop) ============================================================ traceroute to 123.125.99.1 (123.125.99.1), 30 hops max, 60 byte packets 1 38.94.111.1 29.33 ms AS41378 United States California Fremont cogentco.com 2 219.158.34.181 182.39 ms AS4837 China Beijing ChinaUnicom 3 219.158.116.233 199.16 ms AS4837 China Shanghai ChinaUnicom 4 219.158.113.118 202.49 ms AS4837 China Shanghai ChinaUnicom 5 219.158.113.101 195.17 ms AS4837 China Shanghai ChinaUnicom 6 219.158.6.189 183.99 ms AS4837 China Beijing ChinaUnicom 7 202.96.12.62 201.42 ms AS4808 China Beijing ChinaUnicom 8 61.148.156.238 197.48 ms AS4808 China Beijing ChinaUnicom 9 124.65.194.122 175.03 ms AS4808 China Beijing ChinaUnicom 10 61.135.113.154 196.39 ms AS4808 China Beijing ChinaUnicom 11 * 12 * 13 123.125.99.1 179.93 ms AS4808 China Beijing ChinaUnicom Traceroute to China, Beijing CT (TCP Mode, Max 30 Hop) ============================================================ traceroute to 180.149.128.1 (180.149.128.1), 30 hops max, 60 byte packets 1 38.94.111.1 0.24 ms AS41378 United States California Fremont cogentco.com 2 162.219.85.245 123.99 ms AS10099 China Hong Kong ChinaUnicom 3 203.160.75.222 153.25 ms AS10099 China Hong Kong ChinaUnicom 4 210.14.186.133 150.80 ms * China ChinaUnicom 5 218.105.131.101 145.90 ms AS9929 China Beijing ChinaUnicom 6 210.78.28.74 164.42 ms * China ChinaUnicom 7 202.97.81.65 163.69 ms AS4134 China Beijing ChinaTelecom 8 202.97.17.61 148.41 ms AS4134 China Beijing ChinaTelecom 9 180.149.128.1 151.63 ms AS23724 China Beijing ChinaTelecom Traceroute to China, Beijing CM (TCP Mode, Max 30 Hop) ============================================================ traceroute to 211.136.25.153 (211.136.25.153), 30 hops max, 60 byte packets 1 38.94.111.1 0.55 ms AS41378 United States California Fremont cogentco.com 2 162.219.85.245 124.07 ms AS10099 China Hong Kong ChinaUnicom 3 203.160.75.222 151.94 ms AS10099 China Hong Kong ChinaUnicom 4 210.14.186.137 150.86 ms * China ChinaUnicom 5 218.105.131.101 144.07 ms AS9929 China Beijing ChinaUnicom 6 210.78.28.74 164.47 ms * China ChinaUnicom 7 219.158.35.45 171.37 ms AS4837 China Beijing ChinaUnicom 8 * 9 221.176.15.177 163.07 ms AS9808 China Beijing ChinaMobile 10 * 11 111.24.14.46 180.53 ms AS9808 China Beijing ChinaMobile 12 * 13 * 14 211.136.63.66 180.37 ms AS56048 China Beijing ChinaMobile 15 211.136.95.226 178.72 ms AS56048 China Beijing ChinaMobile 16 * 17 211.136.25.153 172.91 ms AS56048 China Beijing ChinaMobile
