WWW.UDEMY.COM 網站分析
WWW.UDEMY.COM 的 SEO 統計資料已至少 60 天沒有更新。我們已啟動網站的後台分析任務，請稍等幾分鐘。
基本信息
URL:
服務器:
未知
IP:
城市:
頁面信息
標題:
Online Courses - Learn Anything, On Your Schedule | Udemy
長度: 57 字元; 最佳長度: 10 ~ 60 字元
Meta 描述信息:
Udemy is an online learning and teaching marketplace with over 100,000 courses and 24 million students. Learn programming, marketing, data science and more.
長度: 156 字元; 最佳長度: 50 ~ 160 字元
Meta 關鍵詞:
長度: 0 字元; 最佳長度: 10 ~ 255 字元
The length of your meta keywords seems to be outside the recommended range. Ideally, a meta keywords should be between 10 and 255 characters, including spaces.
Meta keywords are a specific type of meta tag that appear in the HTML code of a web page. They provide information to search engines about the topic of the page. Meta keywords were once used to help rank web pages in search engine results. However, due to the abuse by webmasters and marketers, Google claims to have stopped using them more than a decade ago. Despite this, there are still reasons to consider using meta keywords:
- Uncertain Impact on Google's Algorithm: While Google devalued meta keywords, it is uncertain if they were entirely removed from its ranking algorithm. Google keeps its ranking algorithms top secret to deter people from gaming the system.
- Other Search Engines and CMS: Other search engines like Yandex, Baidu, and Naver may still use meta keywords. Additionally, some internal CMS search systems, such as SOLR and Algolia, also utilize the meta keywords tag.
Best practices for Meta Keywords
- Relevance is Key: It is crucial to choose keywords that accurately reflect the content of your page.
- Keep it Limited: It is generally recommended not to exceed more than 10 meta keywords for a single page. Also, the content length should not exceed 255 characters (including spaces).
- Consider Long-Tail Keywords: Long-tail keywords are more specific and longer phrases that target a niche audience. These keywords can be highly effective in driving targeted traffic to your website.
Remember, meta keywords are just one aspect of search engine optimization (SEO), and search engines now place less emphasis on them compared to other factors. However, by following these best practices, you can still optimize your meta keywords effectively and improve the visibility of your web pages.
H1標籤:
Learn on your schedule
長度: 22 字元; 最佳長度: 10 ~ 255 字元
外部鏈接:
5 (0 nofollow)
內部鏈接:
245 (0 nofollow)
建站技術
服務器:
未知
SSL 安全:
不可用
robots.txt:
不可用
XML 站點地圖:
不可用
Gzip 壓縮:
有效
favicon.ico:
不可用
HTTP Head 分析
HTTP 協議採用了請求與響應模型，通過HTTP Header 定義了HTTP 傳輸過程中的必要參數。瀏覽器（例如Internet Explorer, Google Chrome, Firefox 等）並不會顯示HTTP header 字段的內容，下面是網站www.udemy.com 的HTTP header 信息:
HTTP/1.1 301 Moved Permanently
Date: Sun, 14 Jun 2020 16:22:08 GMT
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: __cfduid=daad164148a7022e680565801cf22d87a1592151728; expires=Tue, 14-Jul-20 16:22:08 GMT; path=/; domain=.udemy.com; HttpOnly; SameSite=Lax
Location: https://www.udemy.com/
CF-Ray: 5a35636cd9b5e754-EWR
Cache-Control: max-age=3600
Expires: Sun, 14 Jun 2020 17:22:08 GMT
Vary: Accept-Encoding
cf-request-id: 03553c78090000e754fd905200000001
X-Content-Type-Options: nosniff
Set-Cookie: __cfruid=ceb3a6b98278cd90ef3cb901b303bb17cf362fbe-1592151728; path=/; domain=.udemy.com; HttpOnly
Server: cloudflare
HTTP/1.1 200 OK
Date: Sun, 14 Jun 2020 16:22:08 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: __cfduid=ded41757c8abaf7af4878094d5197ea871592151728; expires=Tue, 14-Jul-20 16:22:08 GMT; path=/; domain=.udemy.com; HttpOnly; SameSite=Lax
CF-Ray: 5a35636d3935e6f8-EWR
Age: 0
Cache-Control: max-stale=0, no-cache, private, post-check=0, must-revalidate, max-age=0, pre-check=0, no-store
Strict-Transport-Security: max-age=31536000; includeSubDomains
Vary: Cookie, Accept-Encoding
Via: 1.1 varnish (Varnish/5.2)
CF-Cache-Status: DYNAMIC
Access-Control-Allow-Credentials: true
Access-Control-Allow-Headers: Accept,Authorization,Cache-Control,Content-Type,DNT,If-Modified-Since,Keep-Alive,Origin,User-Agent,X-Requested-With
Access-Control-Allow-Methods: GET, POST, PUT, DELETE, OPTIONS
Access-Control-Expose-Headers: Authorization
cf-request-id: 03553c78410000e6f8dc14b200000001
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-Permitted-Cross-Domain-Policies: master-only
X-Udemy-Cache-App-Namespace: home
X-Varnish: 949879257
X-XSS-Protection: 1; mode=block
Set-Cookie: ud_cache_release=f1614b422cdd9ac86a9b; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: ud_cache_user=""; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: __udmy_2_v57r=1002c39a343a4934bc178fcfa7115557; Domain=.udemy.com; expires=Mon, 14-Jun-2021 16:22:08 GMT; Max-Age=31536000; Path=/; Secure
Set-Cookie: ud_cache_campaign_code=NEWLEARNINGS; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: inaff=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_cache_modern_browser=0; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: checkout_feedback_message_type=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_cache_price_country=US; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: evi="SlFeJQILASkTSVBjXFVAdBNJUGMYQE99HVFdIExYQ3UHQ1Y8QkAGOxNJUGNcVUN8E0lQYxhAT30dUV0gTFhDdQdBVm1MUEN1AVEROkwUV3YJXwk3D0BPegZLGzxCQEd+CUcJexVAA24LQgdjGANXdgREHHcTTld+BEQTY1QZVzoTSRptTBQUbgtFHnJeH1luA0YSeUxYDm5HURFwQkADLRNJHXRYWggxTA=="; expires=Tue, 14-Jul-2020 16:22:08 GMT; Max-Age=2592000; Path=/
Set-Cookie: ud_cache_device=None; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: ud_cache_logged_in=0; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: eva=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_credit_last_seen=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: udmy_branded_partner=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: __udmy_evid=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_credit_unseen=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_cache_language=en; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: exaff=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_firstvisit=2020-06-14T16:22:08.237624+00:00:1jkVOa:3GqjYR4fjB1IsDqYYAoFykgHKjw; expires=Mon, 14-Jun-2021 16:22:08 GMT; Max-Age=31536000; Path=/
Set-Cookie: checkout_feedback_message=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_rule_vars="eJyFzUsOgyAUheGtGKatzeWhKGshIVcES2pKCujEuPca2447PMn_5WykYJpccaNZQw4lJkUBmOU9csFR9FwMlsrOW4-S0qZppLIxPoIjqiKbJjPmYkpc7N2UhN4Ha3JcknVmxRRwmJ0-Sk1imvAZrCbXY_iQDnUemhHLN2HAoIa2pqKirWJMQXdjTMqGXgAUwMeeh8m9Fpf_4U5yEP0P72R_A67lR2k=:1jkVOa:ff01_DTIVy6ZyGYXy8oFMs1D2do"; expires=Tue, 14-Jun-2022 16:22:08 GMT; Max-Age=63072000; Path=/
Set-Cookie: ud_cache_version=1; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: ud_cache_brand=USen_US; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: ud_user_jwt=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_cache_marketplace_country=US; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: seen=1;Path=/;Max-Age=1800
Set-Cookie: __cfruid=ceb3a6b98278cd90ef3cb901b303bb17cf362fbe-1592151728; path=/; domain=.udemy.com; HttpOnly; Secure; SameSite=None
Server: cloudflare
Content-Encoding: gzip
Date: Sun, 14 Jun 2020 16:22:08 GMT
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: __cfduid=daad164148a7022e680565801cf22d87a1592151728; expires=Tue, 14-Jul-20 16:22:08 GMT; path=/; domain=.udemy.com; HttpOnly; SameSite=Lax
Location: https://www.udemy.com/
CF-Ray: 5a35636cd9b5e754-EWR
Cache-Control: max-age=3600
Expires: Sun, 14 Jun 2020 17:22:08 GMT
Vary: Accept-Encoding
cf-request-id: 03553c78090000e754fd905200000001
X-Content-Type-Options: nosniff
Set-Cookie: __cfruid=ceb3a6b98278cd90ef3cb901b303bb17cf362fbe-1592151728; path=/; domain=.udemy.com; HttpOnly
Server: cloudflare
HTTP/1.1 200 OK
Date: Sun, 14 Jun 2020 16:22:08 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: __cfduid=ded41757c8abaf7af4878094d5197ea871592151728; expires=Tue, 14-Jul-20 16:22:08 GMT; path=/; domain=.udemy.com; HttpOnly; SameSite=Lax
CF-Ray: 5a35636d3935e6f8-EWR
Age: 0
Cache-Control: max-stale=0, no-cache, private, post-check=0, must-revalidate, max-age=0, pre-check=0, no-store
Strict-Transport-Security: max-age=31536000; includeSubDomains
Vary: Cookie, Accept-Encoding
Via: 1.1 varnish (Varnish/5.2)
CF-Cache-Status: DYNAMIC
Access-Control-Allow-Credentials: true
Access-Control-Allow-Headers: Accept,Authorization,Cache-Control,Content-Type,DNT,If-Modified-Since,Keep-Alive,Origin,User-Agent,X-Requested-With
Access-Control-Allow-Methods: GET, POST, PUT, DELETE, OPTIONS
Access-Control-Expose-Headers: Authorization
cf-request-id: 03553c78410000e6f8dc14b200000001
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-Permitted-Cross-Domain-Policies: master-only
X-Udemy-Cache-App-Namespace: home
X-Varnish: 949879257
X-XSS-Protection: 1; mode=block
Set-Cookie: ud_cache_release=f1614b422cdd9ac86a9b; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: ud_cache_user=""; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: __udmy_2_v57r=1002c39a343a4934bc178fcfa7115557; Domain=.udemy.com; expires=Mon, 14-Jun-2021 16:22:08 GMT; Max-Age=31536000; Path=/; Secure
Set-Cookie: ud_cache_campaign_code=NEWLEARNINGS; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: inaff=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_cache_modern_browser=0; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: checkout_feedback_message_type=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_cache_price_country=US; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: evi="SlFeJQILASkTSVBjXFVAdBNJUGMYQE99HVFdIExYQ3UHQ1Y8QkAGOxNJUGNcVUN8E0lQYxhAT30dUV0gTFhDdQdBVm1MUEN1AVEROkwUV3YJXwk3D0BPegZLGzxCQEd+CUcJexVAA24LQgdjGANXdgREHHcTTld+BEQTY1QZVzoTSRptTBQUbgtFHnJeH1luA0YSeUxYDm5HURFwQkADLRNJHXRYWggxTA=="; expires=Tue, 14-Jul-2020 16:22:08 GMT; Max-Age=2592000; Path=/
Set-Cookie: ud_cache_device=None; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: ud_cache_logged_in=0; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: eva=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_credit_last_seen=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: udmy_branded_partner=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: __udmy_evid=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_credit_unseen=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_cache_language=en; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: exaff=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_firstvisit=2020-06-14T16:22:08.237624+00:00:1jkVOa:3GqjYR4fjB1IsDqYYAoFykgHKjw; expires=Mon, 14-Jun-2021 16:22:08 GMT; Max-Age=31536000; Path=/
Set-Cookie: checkout_feedback_message=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_rule_vars="eJyFzUsOgyAUheGtGKatzeWhKGshIVcES2pKCujEuPca2447PMn_5WykYJpccaNZQw4lJkUBmOU9csFR9FwMlsrOW4-S0qZppLIxPoIjqiKbJjPmYkpc7N2UhN4Ha3JcknVmxRRwmJ0-Sk1imvAZrCbXY_iQDnUemhHLN2HAoIa2pqKirWJMQXdjTMqGXgAUwMeeh8m9Fpf_4U5yEP0P72R_A67lR2k=:1jkVOa:ff01_DTIVy6ZyGYXy8oFMs1D2do"; expires=Tue, 14-Jun-2022 16:22:08 GMT; Max-Age=63072000; Path=/
Set-Cookie: ud_cache_version=1; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: ud_cache_brand=USen_US; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: ud_user_jwt=""; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/
Set-Cookie: ud_cache_marketplace_country=US; expires=Mon, 15-Jun-2020 16:22:08 GMT; Max-Age=86400; Path=/
Set-Cookie: seen=1;Path=/;Max-Age=1800
Set-Cookie: __cfruid=ceb3a6b98278cd90ef3cb901b303bb17cf362fbe-1592151728; path=/; domain=.udemy.com; HttpOnly; Secure; SameSite=None
Server: cloudflare
Content-Encoding: gzip
DNS 記錄分析
DNS 域名系統（Domain Name System，縮寫）是Internet 的一項基礎服務。它作為將域名和 IP 位址相互映射的一個分佈式數據庫，能夠使人更方便的訪問互聯網。 udemy.com 當前共有 40 項 DNS 記錄。
| 主機 | 類型 | IP/目標 | TTL | 擴充資訊 |
|---|---|---|---|---|
| udemy.com | A | 300 | ||
| udemy.com | A | 300 | ||
| udemy.com | NS | 38527 | ||
| udemy.com | NS | 38527 | ||
| udemy.com | SOA | 60 | expire: 604800 serial: 2038503971 | |
| udemy.com | MX | 300 | pri: 5 | |
| udemy.com | MX | 300 | pri: 5 | |
| udemy.com | MX | 300 | pri: 1 | |
| udemy.com | MX | 300 | pri: 10 | |
| udemy.com | MX | 300 | pri: 10 | |
| udemy.com | MX | 300 | pri: 10 | |
| udemy.com | MX | 300 | pri: 10 | |
| udemy.com | TXT | google-site-verification=FZsUD-xuwip73XO7XfuX-4kDEY-_Qel0klHmmu6CB5k | 120 | |
| udemy.com | TXT | v=spf1 include:_spf.google.com include:mktomail.com include:spf.mtasv.net include:mail.zendesk.com -all | 120 | |
| udemy.com | TXT | MS=ms39886121 | 120 | |
| udemy.com | TXT | citrix-verification-code=6b798901-86c6-452c-a3ea-ed718cab39bd | 120 | |
| udemy.com | TXT | globalsign-domain-verification=Bo6R5k9s2Zwdk5OoeybGk6L2EHx_oV1TqLgGiMR4IQ | 120 | |
| udemy.com | TXT | globalsign-domain-verification=K9ZBZYNiNsNNOiaY2Tbjn-Bfe0dWwAwpstKoOOVJWO | 120 | |
| udemy.com | TXT | docusign=206e891a-5b22-4d4c-9a10-85066ba89160 | 120 | |
| udemy.com | TXT | atlassian-domain-verification=iztR9OQCHGIVBm5w5PmFPf1nTaqiOROSuNTF9Kv0idnfzCBmAsbfwGEF2aOK+yo4 | 120 | |
| udemy.com | TXT | _globalsign-domain-verification=oJsQtL3M8axaRGjlRJ4BstY+1TfWDryoeAouwRxay7A= | 120 | |
| udemy.com | TXT | google-site-verification=mSmGycRVFusrCec4blSh608oUai-y0AumEuI3OlaGBo | 120 | |
| udemy.com | TXT | adobe-idp-site-verification=e54c98a1c7f23b54b8ac4b7b75952259c173d7bfba731f72db60eb7ad4e63d97 | 120 | |
| udemy.com | TXT | google-site-verification=IKMJeRfamsooHAMaTQdFDaQ4MsfeW1Nr6F7DPDEkycg | 120 | |
| udemy.com | TXT | google-site-verification=RuYIvfeP5e2eBgQzIaky9XuiCkkrVE2KUBULndTtFE4 | 120 | |
| udemy.com | TXT | cloudhealth=8d6a3d7f-ed91-4280-8422-b4b27b3dfcda | 120 | |
| udemy.com | TXT | _globalsign-domain-verification=9UioyPO0_F2Epyd3gGV5_VklXzoibTukD_jkbZPw43 | 120 | |
| udemy.com | TXT | google-site-verification=ld8CL_RjIj_FPsIdElHPqkhOMJ8Rixk1y7-s0Opi-90 | 120 | |
| udemy.com | TXT | atlassian-domain-verification=YpSV2agr6k+w5lkm2ml8m8/N+xCTPcXjTKwDomeoJJTrgnmCoeRyXs/U576G4Cz2 | 120 | |
| udemy.com | TXT | globalsign-domain-verification=fB1XzR_1Hvbw32pP6EbLFlB9r4pxcc86XOgA7B7DyV | 120 | |
| udemy.com | TXT | onetrust-domain-verification=2a6df466515246c4a7c37104f55a82b8 | 120 | |
| udemy.com | TXT | miro-verification=f165badb21a511b048a7f7a9fba3352c0db8b09b | 120 | |
| udemy.com | TXT | apple-domain-verification=MntOsncD5C5BxosV | 120 | |
| udemy.com | TXT | google-site-verification=0Gl3_FzqmUkS2NHg_Wd5pmGiSmt_Jk4MVnaCiDbhDnY | 120 | |
| udemy.com | TXT | stripe-verification=4d955ddab5b0fc6cf1931b41935e45f7997f3b13677532d11e6a90b58f5156aa | 120 | |
| udemy.com | TXT | stripe-verification=e2909d7f06f271e18ace56ef06db7b552e6692c312adfedaf6cea1a2e0d63125 | 120 | |
| udemy.com | TXT | stripe-verification=044c7ed24abd68184b0a86b00dbd47b87d1db3a5eb2ee132df5131bfc6fe29d1 | 120 | |
| udemy.com | TXT | stripe-verification=e006b01ab77ebbe2e6c509a4e2280540bfea979f8c49ed3efd225004aa2f6292 | 120 | |
| udemy.com | AAAA | 2606:4700::6810:4155 | 300 | |
| udemy.com | AAAA | 2606:4700::6810:4255 | 300 |