A 记录(IPv4)
| 记录值 | TTL |
|---|---|
| 34.194.97.138 | 1373 |
MX(邮件服务器)
| 优先级 | 邮件服务器 | TTL |
|---|---|---|
| 10 | nvidia-com.mail.protection.outlook.com | 7200 |
NS(权威服务器)
| 记录值 | TTL |
|---|---|
| ns7.dnsmadeeasy.com | 7200 |
| dns1.p09.nsone.net | 7200 |
| ns5.dnsmadeeasy.com | 7200 |
| dns2.p09.nsone.net | 7200 |
| ns6.dnsmadeeasy.com | 7200 |
TXT(文本记录)
| 记录内容 | TTL |
|---|---|
| apple-domain-verification=AB3LxniJsUaLUcY5HvdpX1R8DTt0wK00TTlz9bLWYqA | 3600 |
| openai-domain-verification=dv-NFgbKpjTQ0ahyMXgoAHmOxJY | 3600 |
| openai-domain-verification=dv-NvYhgg87YsmEx1yhbZSJrBhQ | 3600 |
| _2e0v9clijhuv53e0z8ypnbin4pvcay5 | 3600 |
| duo_sso_verification=TzxwSiyiqBThbUymIdN9VVIm6xPyKGCFQZZX6Gt8DBsSqPlhDgAz8H4maEwMKEZo | 3600 |
| kp6v5hv1mb3vfdljx9tgwd4l937vd14y | 3600 |
| mailigen-site-verification=58788cc4908d5697c6ea4801a7fea3f6 | 3600 |
| docusign=96779a1c-034b-4e45-b43d-d542d10e71ec | 3600 |
| smartsheet-site-validation=GesD_luIWHnX8PgyzkdwkP4zgJbEnWFG | 3600 |
| xmind-domain-verification-fzhrb5=2CDgcQwEk3L1j2txLkWniBSnO | 3600 |
| facebook-domain-verification=8xnj9c1jc5elzjmp75cud9ty4ddqe1 | 3600 |
| ek0aq24s0hi15hq4tqtkqjj1aj | 3600 |
| jxp4dypdbq8k2qfh3csbxqk3mhtt3bc2 | 3600 |
| MS=ms46230291 | 3600 |
| amazonses:SJniAvY8SFy0o9cZGRDXV8eDcQ5oyo+QNtLHM37omUY= | 3600 |
| onetrust-domain-verification=94a8e142562349faa2ba5529c6cbdc30 | 3600 |
| google-site-verification=2-satGFR6KHGOFKHt9pAAhY4xpgq1pmusepMak2uuFw | 3600 |
| cxqdvl1xsmlvpwd2xd11mbp6tk4b2fn9 | 3600 |
| docker-verification=c9680cb5-881b-4f8b-a803-42a918cdcf57 | 3600 |
| wrike-verification=MzQ5MDMzNjoxNGE4MDkxMDAyYzEyNGU5YWQxNGVhYWI4ZjkzNzhhMmIwZWY4MzViYWVkZTZjZjk3YjhhYWYxNTgzYTc0ZWVl | 3600 |
| rbdnz94w8kspd08l35ddj10s25lzfsn3 | 3600 |
| perplexity-ai-domain-verification-q7nwx7=rsQck5ZDngPVcnFaBeEOnq8yy | 3600 |
| teamviewer-sso-verification=2b7c86a77be24f7b8573b688a8e22e12 | 3600 |
| sonatype-verification=OSSRH-58518 | 3600 |
| v=DKIM1;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5pZXEi8/P4fDOafsJ88H48w2f8UQ6z98cELLNoNt2R9SU72Vub/ksg+MYGxGZRsV21FEDkPzd8JqIS95qKL6u+L/FGXdi1nknL9YowFcHZ04wR5+HEkIZ3W4Q7wzIyITul065bUB1/jN3GCf2Ab3JxKHvu2cffNwwjSwbCvvFi6Y7xtiKg7PUAmD3lJU7joS9MIwk8G35WbQjRU7F21/ryPkFmtWDEYQRAo7cJ3EORRDms06taHZN+Mx5KN2bBq/ULOdX7RURFFzzOy0xajWpOkfIyV0uk+arLr4dFthkHO0pwyBFaNAYFs141ZJFkUYhxA3G+4zljVQOMCVrMuGqwIDAQAB | 3600 |
| 00DWG000005SHvt=1TBWG0000000Ooj | 3600 |
| v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all | 3600 |
| apple-domain-verification=BVP359YB3NqbMfZN | 3600 |
| ciscocidomainverification=5fdcd1977e45fc341a83e8f8c0149146995952cd51fb04a9d1b950717f6e5647 | 3600 |
| lptj19vv8ny9w6g7x730jr81fwjj5js1 | 3600 |
| 1pq0y02mf1v1m7k3lr86vyxmy4y2c68b | 3600 |
| mn7s1rhpyt62qychj30kwqglk6m0xbf7 | 3600 |
| xr3$HxkR2hjQBd6n8xLZeKkT2Weed2I&5t3srsv6yXqgeoGxwB#tZXM#e8JPGTJor^H#e1zRQO8@7fZmWeFrlhDhe4v01Ij%^c7 | 3600 |
| 2bv8cxn82sdc4jf5k46r4yjymyq99kx5 | 3600 |
| 00DWF00000CuVQQ=1TBWF0000000hub | 3600 |
| autodesk-domain-verification=DsRz7uyZ60rHqKxi31y9 | 3600 |
| _bsu0cnbbyliltohc5op1gjad09swnyb | 3600 |
| 8cm9gxpghxsp9574p1nz7qyvfnsp7j8p | 3600 |
| google-site-verification=E0JpDUEbAIl3vRi2qQd2jrKE-LhGI5O6OebHTywDLYQ | 3600 |
| rzp-site-verification=e96209bbed5b907c3f31ee1eb7007f52 | 3600 |
| wrike-verification=MzkwOTExMDpiYjg3NmMwYTY1MjhjODk1NWY1MzZiZDQxMDljOGU5ZjMyYTIzYjNlZmYyNGQ4ZDViY2FlYjdhODkzNjMwMzBm | 3600 |
| _xcqf40cqfhy8igzqdkbjdyb4nys65u9 | 3600 |
| atlassian-domain-verification=TkpNmmgTUPTLgab1/pTD1DQIwSM2wKR38idvHtF1/yzRlc7ajVBMnJ1PSdIwPYH+ | 3600 |
| 6pz5xms6zpn4mngxrgm8xj6v2btwff06 | 3600 |
| stripe-verification=87E8E0C1E618E41698A141FFBEF22C7F77D5AC285CD7404907CFB4D131F7BFFF | 3600 |
| webexdomainverification.4C675B8BC9F4B136E053AB06FC0A3F65=7bca8485-5ef5-41d8-9095-9faeb8267f22 | 3600 |
| bua5v23vah91dl7u8q18uqeqi2 | 3600 |
| _ta09m7iwsv1mha5ex6kiebva69g310k | 3600 |
| _e97jw0iw78afuye7dwuhjyh3fpm0eua | 3600 |
| amazonses:tiDUkAUORs6LGjJXT0/6lf7qhM1Z/k+5ax6kvycH0KU= | 3600 |
| mtdg5mrgrnvpqfxgzd0cyl6281w2qd83 | 3600 |
| webexdomainverification.JUIU=a2070f62-2329-43d5-a745-0506cd1e0be8 | 3600 |
| slack-domain-verification=JdqDQf1IlTnyYj3bjoNb5vAAQNY43wTMTka9JV6L | 3600 |
| 2417050a-133b-4a53-8378-68e5c05da937 | 3600 |
| google-site-verification=Bgm4VneS70f1CGZKg-D3tGoEQYxxHm56CH1v8frb1OA | 3600 |
| yandex-verification:050a0e32621f5209 | 3600 |
| gkr1fe2hai0i5lpj2jqmatdp4t | 3600 |
| anthropic-domain-verification-yrjjcd=ej6XWEu0ENbzDBfGT2ApwOA9u | 3600 |
| _aruimzyfi76an2jxf1in2l105k6nz3b | 3600 |
| 00DWJ000008WdOD=1TBWJ0000000ECf | 3600 |
| 7iv8kqoklj3k99ad2hm1i3rp5u | 3600 |
| xz3kx787d2v3sybkp648jh2xpb41w7ss | 3600 |
| docusign=a95fd649-319d-4f9d-b832-6925ebd520fd | 3600 |
| stripe-verification=99D9E45F72AD5546982F73E692E6BF04557C64DAB69C66E6200EE7B88D8BFF58 | 3600 |
| _z66mbl00eie3gk8qvoeo0jn57peolxo | 3600 |
| 37e5g68gjeqgjjc64hlihvgiim | 3600 |
| openai-domain-verification=dv-n75OVQToqSuaVb8uhdA5Gm5S | 3600 |
| onetrust-domain-verification=a82a3dc15f9f4b5ba1ebebc75ee8880d | 3600 |
| airtable-verification=d6d9ca2bacc2c108daad98a586ea9ae7 | 3600 |
| b47c0mpmnsxbg005dw6b5jpft3smyxc0 | 3600 |
| domain-verification-yrjjcd=ej6XWEu0ENbzDBfGT2ApwOA9u | 3600 |
| 596hdfxvpnrhgnb5h0rd9jmpy5dgnmxm | 3600 |
| 00Dam00001aB64r=1TBWj0000000NpR | 3600 |
| fern-domain-verification-tq9vd4=ZtQlGS4odLpLlCo4IyDHQYXol | 3600 |
| MagCfj2QvpMlValiiUpfiQk20jX6TQiVe2kRGvpC9oO5ndpTc5Lg2Rp4EPVYKjvIb/8f4U5tRMD8uqIuaYRh8g== | 3600 |
| aliyun-site-verification=47b62ce6-8506-41f0-bb2f-07b3a645d506 | 3600 |
| webexdomainverification.4faf3ee01037479be053ad06fc0aecb4=d1b282f3-54e0-4575-9fac-cfd9a87b4d3b | 3600 |
| 705HTG3G6VA7V2IN61PSCVLMDC | 3600 |
| 0ed1fe018a86de5c28fed445dda5cec48fd7d5cc0f | 3600 |
| _apmx74bb1j68dcnum1ooerr3537kt3f | 3600 |
| 4mq1tkhh4a1ah00o7fpl6l9e0g | 3600 |
| ZOOM_verify_8gBBD3UzStWKA3mt6lwsTA | 3600 |
| mongodb-site-verification=ROIaNgdagjgVhIzbnNJrLtHAQerIZZ7G | 3600 |
SOA(起始授权)
| 主服务器 | dns2.nvidia.com |
| 管理员邮箱 | hostmaster@nvidia@com |
| 序列号 | 2017029210 |
| 刷新 / 重试 | 10800 / 3600 秒 |
| 过期 / 最小 TTL | 2419200 / 0 秒 |
邮件与安全
| MX 邮件服务器 |
10 nvidia-com.mail.protection.outlook.com › |
| SPF |
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all 已配置:声明了允许代表本域发信的服务器 |
| DMARC | v=DMARC1; p=reject; rua=mailto:[email protected]; fo=1; ri=3600 |
NS 与解析服务商
常见问题
什么是 DNS 记录?
DNS 是互联网的「通讯录」:输入域名,由它查出对应的服务器地址。记录就是这个通讯录里的一条条条目,不同类型承担不同职责 —— A 管地址、MX 管邮件、NS 管由谁来回答解析。
一个域名通常同时存在多种记录,本站结果页会按类型分开列出,并标注每条记录的 TTL(缓存有效期)。
A、AAAA、CNAME 有什么区别?
A 记录把域名指向一个 IPv4 地址,AAAA 记录指向 IPv6 地址,两者可以同时存在,让站点同时支持两种网络。
CNAME 是别名:把域名指向另一个域名,再由后者继续解析。CDN 与云服务普遍用 CNAME 接入,所以有 CNAME 的域名,最终 IP 由服务商动态决定。
按规范,CNAME 不能与其它记录(除 DNSSEC 相关外)共存于同一个名字上。
MX、SPF、DMARC 是做什么的?
MX 指明该域名的邮件由哪些服务器接收,是收信的关键记录;域名不配 MX 就无法正常收邮件。
SPF(写在 TXT 记录里)声明「哪些服务器有权代表本域发信」,收件方据此判断来信是否伪造。DMARC 则进一步规定「伪造邮件该怎么处理」(放行、隔离还是拒收),并让域名所有者收到报告。
两者都缺失时,别人可以冒用你的域名发信而几乎不受惩罚,因此邮件服务商都会要求配置。
为什么有些记录查不到?
查不到通常有三种原因:一是该域名确实没有配置这种记录(例如纯网站域名没有 MX);二是记录刚修改、还没传播到公共解析器;三是域名本身不存在或已过期。
解析结果受 TTL 影响会有缓存延迟,正常范围是几分钟到几小时。本站结果页点右上角「重新解析」可强制刷新,但短时间内重复刷新会被冷却限制。
NS 记录和服务商识别有什么用?
NS 记录指明这个域名由哪台权威 DNS 服务器负责解析,它通常属于某个云厂商或域名服务商。看到 dnspod.net 就知道用的是腾讯云 DNSPod,看到 cloudflare.com 就是 Cloudflare。
判断一个站点的基础设施时,NS 服务商往往能说明它的域名与解析托管在哪里。