WWW.DIGICERT.COM 網站分析

搜索引擎收錄信息

必應:
Google:

頁面信息

標題:
TLS/SSL Certificate Authority | Leader in Digital Trust | DigiCert
長度: 66 字元; 最佳長度: 10 ~ 60 字元

HTML 標題標籤是頁面 SEO 最重要的元素之一,出現在搜尋結果、瀏覽器標籤和書籤中。

您的標題標籤似乎不在理想長度內。

Google 的搜尋結果會截斷超過 60 個字元的標題; Bing 的搜尋結果會截斷超過 70 個字元的標題。

以下是元標題的最佳實踐:

  • 標題長度保持在 10-60 個字元之間。
  • 讓關鍵字/關鍵字詞變得明顯
  • 納入相關的強力字詞
  • 清晰但簡潔
Meta 描述信息:
DigiCert is the leading TLS/SSL Certificate Authority specializing in digital trust solutions through DigiCert ONE, the first platform built for mastering PKI, IoT, DNS, Document, and software trust.
長度: 199 字元; 最佳長度: 50 ~ 160 字元

The length of your meta description seems to be outside the recommended range. Ideally, a META DESCRIPTION should be between 50 and 160 characters, including spaces.

A meta description tag serves as a concise and informative summary of a web page's content, aiming to engage and inform users about the page's topic.

Google relies on the actual content of the page to generate a snippet for search results, but it may also utilize the meta description for a more descriptive representation of the page.

Meta descriptions act as a compelling pitch to persuade users that the page aligns with their search intent. While there's no strict character limit, Google truncates the snippet in search results as necessary to fit the device's width.

Best practices for Meta Descriptions

  • Length: Maintain a description length of 50-160 characters to ensure optimal visibility in search results.
  • Uniqueness: Craft unique descriptions for each page on your website to differentiate their purposes and content.
  • Accuracy: Create descriptions that precisely depict the specific content and purpose of the page.
  • Keywords: Ensure that each web page has a unique meta description containing important keywords relevant to the page's content.
Meta 關鍵詞:
tls-certificate-authority, en, digicert
長度: 39 字元; 最佳長度: 10 ~ 255 字元
H1標籤:
Welcome to the Quantum Age
長度: 26 字元; 最佳長度: 10 ~ 255 字元

建站技術

服務器:
未知
SSL 安全:
有效
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.digicert.com 的HTTP header 信息:
HTTP/1.1 200 OK
Connection: keep-alive
x-frame-options: SAMEORIGIN
last-modified: Fri, 16 May 2025 04:23:16 GMT
etag: "30da9-63539242448e2-gzip"
accept-ranges: bytes
content-encoding: gzip
x-vhost: publish
content-type: text/html;charset=utf-8
X-Content-Type-Options: nosniff
Date: Fri, 16 May 2025 04:24:37 GMT
Strict-Transport-Security: max-age=31557600
set-cookie: affinity="90bf95a0a92061d1"; Path=/; HttpOnly; secure
X-Served-By: cache-nyc-kteb1890097-NYC
X-Cache: MISS
X-Timer: S1747369478.590246,VS0,VS0,VE82
Vary: Accept-Encoding
Set-Cookie: visid_incap_1323850=w99u0tlXT4OCwo5ExVjslwO+JmgAAAAAQUIPAAAAAABHH1XT8DPnhTltgT2UyQUN; expires=Fri, 15 May 2026 07:33:52 GMT; HttpOnly; path=/; Domain=.digicert.com; Secure; SameSite=None
Set-Cookie: nlbi_1323850_3121267=pB3rUdASEH/3AGcu4K/CwQAAAAD5mR1kGiklz4/CPreGkt/t; HttpOnly; path=/; Domain=.digicert.com; Secure; SameSite=None
Set-Cookie: incap_ses_242_1323850=nUSLIHtkIj6JW4qcBMJbAwW+JmgAAAAA8ECOr/KQ+uv0rn16TcrCqg==; path=/; Domain=.digicert.com; Secure; SameSite=None
X-CDN: Imperva
Transfer-Encoding: chunked
X-Iinfo: 17-27496245-27496247 NNNN CT(7 4 0) RT(1747369477540 29) q(0 1 1 0) r(2 2) U12

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。 digicert.com 當前共有 38 項 DNS 記錄。
主機 類型 IP/目標 TTL 擴充資訊
digicert.comA97
digicert.comA97
digicert.comNS18074
digicert.comNS18074
digicert.comNS18074
digicert.comNS18074
digicert.comNS18074
digicert.comNS18074
digicert.comNS18074
digicert.comNS18074
digicert.comNS18074
digicert.comNS18074
digicert.comSOA21600expire: 1209600
serial: 2009020617
digicert.comMX392pri: 0
digicert.comTXT
asv=1f1b135281f5d1ef6d125b846798c281
20786
digicert.comTXT
miro-verification=31e307c1dc4ae6591a1edd5c7dcf58c678b54d32
20786
digicert.comTXT
v=spf1 ip4:216.168.240.31 ip4:64.58.225.115 ip4:64.58.225.116 ip4:64.78.193.232 ip4:34.213.233.92 ip4:198.21.5.209 ip4:50.31.57.204 ip4:167.89.110.192 ip4:167.89.126.180 ip4:216.168.241.229 ip4:216.168.252.55 ip4:69.58.183.55 ip4:142.0.167.188 ip4:61.198.17.0/25 ip4:61.198.26.96/27 ip4:202.32.181.0/25 ip4:61.203.134.224/27 ip4:210.237.158.192/27 ip4:211.133.252.0/25 ip4:219.160.177.20 ip4:202.65.18.60 ip4:91.240.105.37 ip4:202.65.16.36 ip4:64.19.218.10 ip4:64.19.218.132 ip4:142.0.167.189 ip4:142.0.167.190 ip4:202.65.20.12 ip4:216.168.247.10 ip4:35.174.145.124 ip4:216.230.14.232 ip4:198.207.147.232 ip4:216.168.244.37 ip4:44.230.95.124 ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 include:spf.protection.outlook.com include:_spf.salesforce.com include:sent-via.netsuite.com include:mail.zendesk.com include:smtp.azurecomm.net -all
20786
digicert.comTXT
PDDL96o0kJXfsY1UKWkj8_-WiQ
20786
digicert.comTXT
google-gws-recovery-domain-verification=48029321
20786
digicert.comTXT
_mkwt024uea9zg5c8ywxx98km4xs59oa
20786
digicert.comTXT
tm25jk2w7b1lqkvzg72ns2tnlwkfx4bp
20786
digicert.comTXT
google-site-verification=biaoTy6jC7ljI6uEbBxS7wtBbZAyukDzJTUhJM_hYEg
20786
digicert.comTXT
QuoVadis=8689a090-cbf6-4aff-8fb7-3416494f1f6f
20786
digicert.comTXT
docker-verification=1608c704-787a-464a-8f5f-4d19c1c3e0aa
20786
digicert.comTXT
docusign=999fd605-b079-4d81-b0d8-a95208ae4450
20786
digicert.comTXT
l685v6cy93xkw8pgppy4ms518l61ql0t
20786
digicert.comTXT
pax8validate
20786
digicert.comTXT
_iu8a5g8unla4ur5rvw7ulwbcfq11mmn
20786
digicert.comTXT
pjzx2ldzjbycl42tc85lm8zm05kxc5b9
20786
digicert.comTXT
atlassian-domain-verification=/d+HEyZ/KMJ86EO42QuM+xsCy/NYRORirQapa7A521Lw2DAfpubWhSPL218lICJ7
20786
digicert.comTXT
c3cfbc958c404c659f758cdd4dc2ae0e
20786
digicert.comTXT
onetrust-domain-verification=f8a2f79b8dab41a492aaaa52e613a679
20786
digicert.comTXT
apple-domain-verification=LysAWG6wOID76rWM
20786
digicert.comTXT
fastly-domain-delegation-3t4rfpsjms3gfs7ifvcc-716488-2023-11-22
20786
digicert.comTXT
hbxl3xs6mnfgcvdwpjltfztfqbm0q6j7
20786
digicert.comTXT
adobe-idp-site-verification=0575680fbf675a4b870e0423b2b288e8f93b19b571ff480a0b235b52428e76f4
20786
digicert.comTXT
kUy+EQPWJE5P7A19foqNx806Ir1KXvwbqbedXmbobf/C+X25pgY1YJ1GVX8rj6VdvXnUvqabmtdTO9VF75StGg==
20786
digicert.comTXT
cloudhealth=eb379e22-a90f-4097-b814-ca7d330ad0d8
20786