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更新时间：2026-09-01 08:43
语言：英语（默认）
网站访问：正常
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主机
Fastly
Proofpoint
位置
United States
知达AI助教专为师生打造，支持AI备课、AI智能出题、AI作业批改、AI教案生成、AI学情分析，AI作文批改、是教师减负、学生提分的全能AI助手
网站信息概览
从公开技术信号来看，当规范链接、描述或分享字段共同不足时，搜索平台更依赖自行推断，可能出现摘要偏题、图片缺失或权重分散。
域名与注册信息
综合当前可观察字段，顶级域为 .edu，属于有资格限制的域名空间。
DNS 与邮件配置
从当前可见信息判断，DNS 托管可识别为 stanford.edu。依据当前可见线索，该域名的收件服务由 Proofpoint 提供。综合当前可观察字段，别名记录表明网站基于 GitHub Pages 提供服务。可见邮件策略包含 SPF 和 DMARC，DKIM 是否启用尚待进一步确认。从公开技术信号来看，TXT 中发现 Google、Atlassian 等第三方服务验证记录。
TLS 与证书
公钥采用主流的 RSA 2048 位方案。TLS 握手提供了完整的证书链数据。证书可验证域名控制权，但现有数据不能确认组织身份。现有迹象表明，证书由 Let's Encrypt 签发，采用常见的自动化短周期证书服务。该证书有效期约 89 天，剩余 85 天。
HTTP 响应
常用安全响应头尚缺少 CSP、X-Content-Type-Options、Referrer-Policy、Permissions-Policy、点击劫持防护。该资源采用开放的跨域读取策略。未发现 X-Powered-By，后端框架信息未通过该字段公开。从公开技术信号来看，HTTP 头提供了 CDN/WAF 经过证据：x-cache、x-served-by、via。未在响应头中发现明显的内部地址或调试信息。
技术栈分析
结合现有公开信息推测，公开信号足以推测网站使用 jQuery、Bootstrap、Fastly，却不足以确定版本。外部扫描仍可能围绕这些技术展开，只是无法直接命中特定版本范围。
SEO 与社交分享
首页未检测到 Meta Description。首页未检测到 Canonical 规范链接。首页没有专门配置社交平台分享信息。页面标题长度为 13 个字符，处于常用展示范围。当前首页面向常规搜索抓取开放。
主机和电子邮件
页面、搜索与分享信息
| 页面描述 | 未检测到 |
|---|---|
| 规范链接 | 未检测到 |
| 语言 | 英语（默认） |
| Twitter Card | 未检测到 |
未知
robots.txt （在新窗口打开）
HTTP 404未发现 robots.txt
Sitemaps
0暂未发现 Sitemaps
域名登记事实 RDAP / WHOIS
| 注册商 | 未知 |
|---|---|
| 注册时间 | 未知 |
| 到期时间 | 未知 |
| 域名状态 | 未知 |
| 名称服务器 | 未知 |
| DNSSEC | unknown |
DNS 记录
| 类型 | 名称 | 值 | TTL | 优先级 |
|---|---|---|---|---|
| A | stanford-crfm.github.io | 185.199.108.153 | 3600 | — |
| A | stanford-crfm.github.io | 185.199.109.153 | 3600 | — |
| A | stanford-crfm.github.io | 185.199.110.153 | 3600 | — |
| A | stanford-crfm.github.io | 185.199.111.153 | 3600 | — |
| AAAA | stanford-crfm.github.io | 2606:50c0:8000::153 | 3596 | — |
| AAAA | stanford-crfm.github.io | 2606:50c0:8001::153 | 3596 | — |
| AAAA | stanford-crfm.github.io | 2606:50c0:8002::153 | 3596 | — |
| AAAA | stanford-crfm.github.io | 2606:50c0:8003::153 | 3596 | — |
| MX | stanford.edu | mxa-00000d07.gslb.pphosted.com | 1800 | 10 |
| MX | stanford.edu | mxb-00000d07.gslb.pphosted.com | 1800 | 10 |
| NS | stanford.edu | argus.stanford.edu | 85163 | — |
| NS | stanford.edu | atalante.stanford.edu | 85163 | — |
| NS | stanford.edu | avallone.stanford.edu | 85163 | — |
| NS | stanford.edu | ns5.dnsmadeeasy.com | 85163 | — |
| NS | stanford.edu | ns6.dnsmadeeasy.com | 85163 | — |
| NS | stanford.edu | ns7.dnsmadeeasy.com | 85163 | — |
| TXT | stanford.edu | 00D46000000qFgG=1TBVH0000000Ak9 | 1800 | — |
| TXT | stanford.edu | 00DVG000007ihZt=1TBVG0000000Ldx | 1800 | — |
| TXT | stanford.edu | 00DVG000007nUP7=1TBVG0000000LkP | 1800 | — |
| TXT | stanford.edu | 00DVG000007pOvX=1TBVG0000000Lqr | 1800 | — |
| TXT | stanford.edu | 00DcX000004xagH=1TBcX0000000DlF | 1800 | — |
| TXT | stanford.edu | 00DcY000007mV77=1TBcY00000007W9 | 1800 | — |
| TXT | stanford.edu | 00DcY000007nqhN=1TBcY00000007mH | 1800 | — |
| TXT | stanford.edu | 00Ddx000003sGMD=1TBdx0000000F0f | 1800 | — |
| TXT | stanford.edu | 00Ddy000003GfFB=1TBdy0000000Dzl | 1800 | — |
| TXT | stanford.edu | 00Dg0000006IKxz=1TBWG0000000Q49 | 1800 | — |
| TXT | stanford.edu | 3VCR5VZOJKXDX3AFKS202RQVEDHPD1WB04T0QNAB | 1800 | — |
| TXT | stanford.edu | 482958E678D10FD3AD1F737F78E8519B | 1800 | — |
| TXT | stanford.edu | 6ce2e56c0743c0db12fbb8d03c7359 | 1800 | — |
| TXT | stanford.edu | 7A06A26ABB86CDADD0ED6FBF1464DF6B | 1800 | — |
| TXT | stanford.edu | D4CE65761A88C03EE2E9841BFF6B8AF0 | 1800 | — |
| TXT | stanford.edu | SFMC-6lLIlwvbCaTM80Tq1R1zsnKi9CqM3R6ZPPvoE6sK | 1800 | — |
| TXT | stanford.edu | Sendinblue-code:bde1f306529e82fd2ccf9857fc09aa98 | 1800 | — |
| TXT | stanford.edu | TAILSCALE-scyG2dkta4GC30jIuPOW | 1800 | — |
| TXT | stanford.edu | adobe-idp-site-verification=4c872117a60d5c3b7d132914730b3f3e2189c67a217450a2f3bc18a683a98f78 | 1800 | — |
| TXT | stanford.edu | airtable-verification=0a746053a028476f6d1671cbc9016585 | 1800 | — |
| TXT | stanford.edu | airtable-verification=13ac52fb202035dbad35b0ab24e598b4 | 1800 | — |
| TXT | stanford.edu | airtable-verification=22e64691170fba22a576b309bf587b87 | 1800 | — |
| TXT | stanford.edu | airtable-verification=6ae90a183923b17d9f1c76e90e31b4e4 | 1800 | — |
| TXT | stanford.edu | airtable-verification=6deae5f718f685ac8c8c3c37418aafcf | 1800 | — |
| TXT | stanford.edu | airtable-verification=7cdd67720483f4801fc65d998968476e | 1800 | — |
| TXT | stanford.edu | airtable-verification=866b719f2d2dab4393f0a7eb83f4d8ba | 1800 | — |
| TXT | stanford.edu | airtable-verification=94cdd68161a8e41e92cc5dd7abde8eae | 1800 | — |
| TXT | stanford.edu | airtable-verification=b8f5e3c2468d582f896b4a8f0839dd8a | 1800 | — |
| TXT | stanford.edu | airtable-verification=bf58597802ed6d32ee6bcb86a575a186 | 1800 | — |
| TXT | stanford.edu | airtable-verification=d28bb41f3c1cb2569170fbdc7758b3e3 | 1800 | — |
| TXT | stanford.edu | amazonses:7IodrIPH40wdjQxliaAOOqSX8rn4q7lSiSvuFZPwUnY= | 1800 | — |
| TXT | stanford.edu | anthropic-domain-verification-rrhf1p=E3SBrctYaemDvHQIrJbKWafVN | 1800 | — |
| TXT | stanford.edu | asv_domain=3c0fdba17820a84cf2eaf5c0246775e0 | 1800 | — |
| TXT | stanford.edu | atlassian-domain-verification=C9ho3V/RWWifTCqh8sF3L0PI7jVZWAL9dCxVL1gzJvr6SYJCKBQ8nCX38z50vRQ6 | 1800 | — |
| TXT | stanford.edu | autodesk-domain-verification=pXMpLf7JP-86kN9Zt5jI | 1800 | — |
| TXT | stanford.edu | brevo-code:033215cd835c1e9ddc21dfb479c54b76 | 1800 | — |
| TXT | stanford.edu | brevo-code:09357c2630559d902817770f34dbf0b1 | 1800 | — |
| TXT | stanford.edu | brevo-code:97c04c03c676317dbc22a7ee103483a6 | 1800 | — |
| TXT | stanford.edu | bwZknJMLNV1XuaJAyUmKlAFrdZo+p5yDlTNACmDUWhgtyihfJc8oWMnK7hWLreN+ozU3mX91yHHzZx0adJPPPg== | 1800 | — |
| TXT | stanford.edu | detectify-verification=bc8e96f8fbf64ced057d0f44eff83381 | 1800 | — |
| TXT | stanford.edu | google-site-verification=1HuKdQQTxv1R8v4dxihLzji-mH23d2KchIeaxsljN6Q | 1800 | — |
| TXT | stanford.edu | google-site-verification=C6QZVcR4K-mSTqLE_9uVC7twZdys_BRJLLVFwgGIG3E | 1800 | — |
| TXT | stanford.edu | google-site-verification=JM6F1JtgpITjPAatlXWl2mpzq_zobtnQEwKsbGA0DIk | 1800 | — |
| TXT | stanford.edu | google-site-verification=XBIgNMnjRT9eOchFldQx7rsHG9ROchX682SfSM0_1lE | 1800 | — |
| TXT | stanford.edu | google-site-verification=bamHrkKBqpOQ8ouXQe0uFSuvVUFTB_TLju7gSCNq_Qw | 1800 | — |
| TXT | stanford.edu | google-site-verification=hIsj3ke1PYviQQm1ig-VMAlmA07GWc5vYeh2qJT56OA | 1800 | — |
| TXT | stanford.edu | google-site-verification=kyvps-t3mjXwz5HBQa7oO40qvObbV8z_B1IoySwe-GY | 1800 | — |
| TXT | stanford.edu | google-site-verification=n-cl_O68vbC-_UmufTZMmLLQb9wKnuUo-4FPom4m3iA | 1800 | — |
| TXT | stanford.edu | google-site-verification=p4uNfSaD7rr13xbA1Q1yW6I0DckXOv1ujjc0FQGjGEM | 1800 | — |
| TXT | stanford.edu | google-site-verification=zwyVSZ2CSXXUndqTu5itEDFvp58bOFVBPAbtrIondBU | 1800 | — |
| TXT | stanford.edu | h1-domain-verification=aV4vQvSRHvQxGhvdz29L2ozsKDTReL7qKDgdjhPgzA5E7UC6 | 1800 | — |
| TXT | stanford.edu | htBOpqv5il135Xfa09GRiVHY09Xb9qXNj6o5lAfj8gNoBvyyGu5rSb4gvSj9lCUwY1NF0+wL2BO1ZDIcGIpADQ== | 1800 | — |
| TXT | stanford.edu | jamf-site-verification=YL4ixnZvLipoTrfg2RUwsg | 1800 | — |
| TXT | stanford.edu | mgverify=c7c142ba8b95199619ad561a75f165ad285c322b3892f9621c083b0293fd0da0 | 1800 | — |
| TXT | stanford.edu | neat-pulse-domain-verification-9X4x1kX=3f8a8c19-1634-41e7-8511-4587459ff713 | 1800 | — |
| TXT | stanford.edu | notion-domain-verification=zGjaM9fWZoGRyOnvaxST0hfeCzfxvxzJnKMTN69sYJw | 1800 | — |
| TXT | stanford.edu | onetrust-domain-verification=1e6b4a2989b7412499dca24f8188396b | 1800 | — |
| TXT | stanford.edu | onetrust-domain-verification=2983144927f6450ea12b5557b2080dae | 1800 | — |
| TXT | stanford.edu | openai-domain-verification=dv-wVTix4O4ZSdYwFCU3lk1NLi6 | 1800 | — |
| TXT | stanford.edu | pardot604641=4bbe27c356474886816017d9b5aea8f21f2d3c3b651096960379a441342c51fb | 1800 | — |
| TXT | stanford.edu | pardot884873=1b7cebffc22a290049b6710c0620e741a3f4d3a720196287a95816f9afaa7695 | 1800 | — |
| TXT | stanford.edu | pexip-ms-tenant-domain-verification=3f0ac106-a365-4d3b-9fb9-2a124f04d0b6 | 1800 | — |
| TXT | stanford.edu | remarkable-domain-verification=d359b4b2-89f8-46f3-862a-6008b632497b | 1800 | — |
| TXT | stanford.edu | samsung-domain-verification=7b810e85-b3d6-4c1c-b33c-44f242e81537 | 1800 | — |
| TXT | stanford.edu | sending_domain1097582=7dcf00de01f5fc8307de59194e0a8b462cbfa2b5e32d35bfc9e5269b93dca7a6 | 1800 | — |
| TXT | stanford.edu | stripe-verification=984c5a4eb98ae34bbaf60c12403c1d8889d4ad02b2dc672232a89b21f905bc20 | 1800 | — |
| TXT | stanford.edu | v=spf1 ip4:171.67.219.64/27 ip4:171.67.224.0/28 ip4:171.67.43.137 ip4:171.67.43.138 ip4:171.67.43.139 ip4:171.67.43.140 ip4:171.67.43.141 include:_spf.google.com include:_spf.qualtrics.com include:icpbounce.com include:spf.protection.outlook.com ip4:148.163.149.245 ip4:148.163.153.235 ip4:148.163.135.119 ip4:148.163.139.119 ip4:67.231.149.169 ip4:67.231.157.125 ip4:67.231.152.67 ip4:208.84.65.155 ?all | 1800 | — |
| TXT | stanford.edu | vmware-cloud-verification-2abfb849-6039-461b-aa8b-eee2629dd6e4 | 1800 | — |
| TXT | stanford.edu | wiz-domain-verification=2957e22f41cc73b19d44177ecf39bd1a1926a1e6362011b8f83e65aab5d6ef1a | 1800 | — |
| CNAME | crfm.stanford.edu | stanford-crfm.github.io | 1800 | — |
| DS | stanford.edu | 6390 13 2 a916f3471dc897d11720aefb8058c95ae5ba83572850013f22968b3c07ea8ac6 | 86400 | — |
| DMARC | _dmarc.stanford.edu | v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; | 1229 | — |
TLS 与证书
| 定性结果 | 配置正常 |
|---|---|
| 支持协议 | TLSv1.2、TLSv1.3 |
| 协商协议 | TLSv1.3 |
| 证书主题 | crfm.stanford.edu |
| 颁发者 | Let's Encrypt |
| 有效期至 | 2026-11-26T03:18 · 记录时剩余 85 天 |
| 验证事实 | 证书信任：通过 · 域名匹配：通过 |
HTTP 响应标头
| 标头 | 值 |
|---|---|
| content-type | text/html; charset=utf-8 |
| cache-control | max-age=600 |
| server | GitHub.com |
| strict-transport-security | max-age=31556952 |
| access-control-allow-origin | * |
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