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C

chemsrc.com

Registered
Page analyze update date: 2026/03/30 13:02:01
Last whois update date: 2026/03/14 13:34:12
Domain Status
Registered
Paid till
01.06.2027
Available from
01.07.2027
SEO Score
34.93%
51
Score achieved
146
Maximum score

Main Information

ℹ️
Title: CAS号查询-CAS NO查询-MSDS查询 「化源网」 专业化工搜索引擎
Description: 化源网提供快速CAS号查询，CAS No查询，MSDS查询，数百万化合物的专业数据，包括物化, MSDS, 安全信息, 合成路线及文献, 毒性，上下游，期刊文献等。
Keywords: CAS，MSDS，CAS号查询，CAS NO查询，MSDS查询，中国化工网
Page Encoding: utf-8
Page Filesize: 267 KB

Server Information

🖥️
IP: 47.97.222.117
Location: China,CN,Hangzhou,,30.2943,120.1663,Asia/Shanghai
Encoding: utf-8

Whois Information

📄
domain_name: chemsrc.com
update_date: 2026-01-12T07:37:03Z
update_time: 1768203423
creation_date: 2015-06-01T07:33:32Z
creation_time: 1433144012
expiration_date: 2027-06-01T07:33:32Z

Whois Raw Data

📋
            Domain Name: CHEMSRC.COM
Registrar: Alibaba Cloud Computing (Beijing) Co., Ltd.
Domain Status: client transfer prohibited
Creation Date: 2015-06-01T07:33:32Z
Registry Expiry Date: 2027-06-01T07:33:32Z
Updated Date: 2026-01-12T07:37:03Z
Name Server: VIP3.ALIDNS.COM
Name Server: VIP4.ALIDNS.COM
REGISTRAR Contact: Alibaba Cloud Computing (Beijing) Co., Ltd.
>>> Last update of RDAP database: 2026-03-14T13:34:12Z

SEO Audit

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Technical SEO

✓
Response Code
HTTP/1.1 200 OK
Status 200 OK - page loads correctly.
✓
Character Encoding
Page: utf-8, Header: utf-8
Character encoding consistent between HTML and headers.
✓
Page Size
273493 bytes
Page size acceptable for fast loading.
✓
Resources
0 total
Optimal number of resources.
✓
Hreflang Tags
hreflang tags
Add hreflang tags if you have multilingual content.
!
Robots.txt
Missing
Add robots.txt file to control search engine crawling.
!
Sitemap
Not found
Add sitemap.xml and reference it in robots.txt.
!
HTTPS
No
Switch to HTTPS for security and SEO benefits.
✓
Compression
gzip
Gzip or Zstd compression enabled for faster loading.
!
Caching
Not set
Add cache-control headers to improve loading speed for returning visitors.
!
Page Speed
Unknown
Load time not measured.

On-Page SEO

✓
Title
CAS号查询-CAS NO查询-MSDS查询 「化源网」 专业化工搜索引擎
Good title length (30-60 characters).
!
Meta Description
化源网提供快速CAS号查询，CAS No查询，MSDS查询，数百万化合物的专业数据，包括物化, MSDS, 安全信息, 合成路线及文献, 毒性，上下游，期刊文献等。 Lenght:82
Meta description too short. Expand to 100-160 characters.
!
H1 Heading
0 found - ""
Add exactly one H1 heading with primary keywords.
!
Word Count
Content very short. Aim for at least 500 words for better SEO.
!
Canonical Tag
Add canonical tag to prevent duplicate content issues.
✓
Duplicate Meta
[]
No duplicate meta tags found.
✓
Keywords
CAS，MSDS，CAS号查询，CAS NO查询，MSDS查询，中国化工网
Meta keywords set (note: not used by major search engines).

Content and UX

!
Language
Add lang attribute to tag for accessibility and SEO.
✓
Images
0 total, 0 missing ALT
All images have proper ALT text.
!
Viewport
Add viewport meta tag for mobile responsiveness.
!
Open Graph
Missing: og:title, og:description, og:image, og:url
Add missing OpenGraph tags for social media sharing: og:title, og:description, og:image, og:url
!
Structured Data
JSON-LD scripts
Add structured data (JSON-LD) for rich snippets and better SEO.

Positions in Yandex

Search Phrases - Yandex

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Position Phrase Page Snippet
1huntington s n винкамин/en/cas/1617-90-9_1189791.html
41 6 o/en/cas/151513-70-1_1198941.html
6номер воды/en/cas/7732-18-5_895090.html

Additional Services

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