www.chemsrc.com
Registered
Page analyze update date:
2026/06/05 00:46:21
Last whois update date:
2026/07/31 04:36:11
Domain Status
Registered
Paid till
01.06.2027
Available from
01.07.2027
×
![Fullscreen website screenshot]()
www.chemsrc.com Website screenshot
SEO Score
63.7%
93
Score achieved
146
Maximum score
Main Information
Title: 名称,CAS号, CAS No,分子式,SMILES,InChIKey,EINECS查询 「化源网」 专业化工搜索引擎
Description: 化源网提供快速名称,CAS号, CAS No,分子式,SMILES,InChIKey,EINECS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: unknown
Page Encoding:
utf-8
Page Filesize: 256 KB
Server Information
IP: 47.97.222.117
Location: China,CN,Hangzhou,30.2943,120.1663,Asia/Shanghai
Http Server: nginx
Encoding: utf-8
Meta Tags List
- name: keywords content: 名称,CAS号, CAS No,分子式,SMILES,InChIKey,EINECS，中国化工网
- name: description content: 化源网提供快速名称,CAS号, CAS No,分子式,SMILES,InChIKey,EINECS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。
- equiv: Content-Language content: zh-CN
- equiv: Content-Type content: text/html; charset=UTF-8
- name: viewport content: width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no
- name: applicable-device content: pc,mobile
- name: referrer content: always
- equiv: X-UA-Compatible content: IE=edge,chrome=1
- name: renderer content: webkit
- equiv: Cache-Control content: no-transform
- equiv: Cache-Control content: no-siteapp
Internal Links
External Links
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: 2026-07-31T04:36:11Z
Robots.txt
User-agent: * Disallow: /ContactUs.jsp Disallow: /login.jsp?* Disallow: /login.jsp Disallow: /register.jsp Disallow: /Statement.jsp Disallow: /getPdf.jsp Disallow: /do*.jsp Disallow: /Request.jsp Disallow: /usermodify.jsp Disallow: /MyEnquiry.jsp Disallow: /MyProduct.jsp Disallow: /FillProduct.jsp Disallow: /en/ContactUs.jsp Disallow: /en/login.jsp Disallow: /en/register.jsp Disallow: /en/Statement.jsp Disallow: /en/getPdf.jsp Disallow: /en/do*.jsp Disallow: /en/Request.jsp Disallow: /en/usermodify.jsp Disallow: /en/MyEnquiry.jsp Disallow: /en/MyProduct.jsp Disallow: /en/FillProduct.jsp Disallow: /en/SSResult.jsp Disallow: /SSResult.jsp Disallow: /EnquiryProduct/ Disallow: /en/EnquiryProduct/ Disallow: /mip/en/Paper/ Disallow: /img/ad/ Disallow: /HeCi/*.html Disallow: /3DView/*.html Disallow: /en/3DView/*.html Disallow: /en/Spectral/*.html Disallow: /SearchSup?act=getNMR* Disallow: /en/searchResult/ Disallow: /searchResult/ User-agent: Googlebot Disallow: /ContactUs.jsp Disallow: /login.jsp?* Disallow: /login.jsp Disallow: /register.jsp Disallow: /Statement.jsp Disallow: /getPdf.jsp Disallow: /do*.jsp Disallow: /Request.jsp Disallow: /usermodify.jsp Disallow: /MyEnquiry.jsp Disallow: /MyProduct.jsp Disallow: /FillProduct.jsp Disallow: /en/ContactUs.jsp Disallow: /en/login.jsp Disallow: /en/register.jsp Disallow: /en/Statement.jsp Disallow: /en/getPdf.jsp Disallow: /en/do*.jsp Disallow: /en/Request.jsp Disallow: /en/usermodify.jsp Disallow: /en/MyEnquiry.jsp Disallow: /en/MyProduct.jsp Disallow: /en/FillProduct.jsp Disallow: /en/SSResult.jsp Disallow: /SSResult.jsp Disallow: /EnquiryProduct/ Disallow: /en/EnquiryProduct/ Disallow: /mip/en/Paper/ Disallow: /img/ad/ Disallow: /HeCi/*.html Disallow: /3DView/*.html Disallow: /en/3DView/*.html Disallow: /SearchSup?act=getNMR* Disallow: /js/*.js User-agent: Baiduspider Disallow: /ContactUs.jsp Disallow: /login.jsp?* Disallow: /login.jsp Disallow: /register.jsp Disallow: /Statement.jsp Disallow: /getPdf.jsp Disallow: /do*.jsp Disallow: /Request.jsp Disallow: /usermodify.jsp Disallow: /MyEnquiry.jsp Disallow: /MyProduct.jsp Disallow: /FillProduct.jsp Disallow: /en/ContactUs.jsp Disallow: /en/login.jsp Disallow: /en/register.jsp Disallow: /en/Statement.jsp Disallow: /en/getPdf.jsp Disallow: /en/do*.jsp Disallow: /en/Request.jsp Disallow: /en/usermodify.jsp Disallow: /en/MyEnquiry.jsp Disallow: /en/MyProduct.jsp Disallow: /en/FillProduct.jsp Disallow: /en/SSResult.jsp Disallow: /SSResult.jsp Disallow: /EnquiryProduct/ Disallow: /en/EnquiryProduct/ Disallow: /mip/en/Paper/ Disallow: /img/ad/ Disallow: /HeCi/*.html Disallow: /3DView/*.html Disallow: /en/3DView/*.html Disallow: /en/Spectral/*.html Disallow: /SearchSup?act=getNMR* Disallow: /js/*.js User-agent: bingbot User-agent: MSNBot Disallow: /ContactUs.jsp Disallow: /login.jsp?* Disallow: /login.jsp Disallow: /register.jsp Disallow: /Statement.jsp Disallow: /getPdf.jsp Disallow: /do*.jsp Disallow: /Request.jsp Disallow: /usermodify.jsp Disallow: /MyEnquiry.jsp Disallow: /MyProduct.jsp Disallow: /FillProduct.jsp Disallow: /en/ContactUs.jsp Disallow: /en/login.jsp Disallow: /en/register.jsp Disallow: /en/Statement.jsp Disallow: /en/getPdf.jsp Disallow: /en/do*.jsp Disallow: /en/Request.jsp Disallow: /en/usermodify.jsp Disallow: /en/MyEnquiry.jsp Disallow: /en/MyProduct.jsp Disallow: /en/FillProduct.jsp Disallow: /en/SSResult.jsp Disallow: /SSResult.jsp Disallow: /EnquiryProduct/ Disallow: /en/EnquiryProduct/ Disallow: /mip/en/Paper/ Disallow: /img/ad/ Disallow: /HeCi/*.html Disallow: /3DView/*.html Disallow: /en/3DView/*.html Disallow: /en/Spectral/*.html Disallow: /salerIndex/*.html Disallow: /SearchSup?act=getNMR* Disallow: /js/*.js User-agent: 360Spider Disallow: /ContactUs.jsp Disallow: /login.jsp?* Disallow: /login.jsp Disallow: /register.jsp Disallow: /Statement.jsp Disallow: /getPdf.jsp Disallow: /do*.jsp Disallow: /Request.jsp Disallow: /usermodify.jsp Disallow: /MyEnquiry.jsp Disallow: /MyProduct.jsp Disallow: /FillProduct.jsp Disallow: /en/ContactUs.jsp Disallow: /en/login.jsp Disallow: /en/register.jsp Disallow: /en/Statement.jsp Disallow: /en/getPdf.jsp Disallow: /en/do*.jsp Disallow: /en/Request.jsp Disallow: /en/usermodify.jsp Disallow: /en/MyEnquiry.jsp Disallow: /en/MyProduct.jsp Disallow: /en/FillProduct.jsp Disallow: /en/SSResult.jsp Disallow: /SSResult.jsp Disallow: /EnquiryProduct/ Disallow: /en/EnquiryProduct/ Disallow: /mip/en/Paper/ Disallow: /img/ad/ Disallow: /HeCi/*.html Disallow: /3DView/*.html Disallow: /en/3DView/*.html Disallow: /en/Spectral/*.html Disallow: /salerIndex/*.html Disallow: /SearchSup?act=getNMR* Disallow: /js/*.js
SEO Audit
Technical SEO
✓
Response Code
200
Status 200 OK - page loads correctly.
✓
Character Encoding
Page: utf-8, Header: utf-8
Character encoding consistent between HTML and headers.
✓
Page Size
262680 bytes
Page size acceptable for fast loading.
✓
Resources
32 total
Moderate number of resources. Consider combining files.
✓
Hreflang Tags
3 hreflang tags
Hreflang tags found for multilingual SEO.
✓
Robots.txt
Exists
Robots.txt file found.
!
Sitemap
Not found
Add sitemap.xml and reference it in robots.txt.
✓
HTTPS
Yes
Secure HTTPS connection enabled.
✓
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
6.63 ms
Excellent loading speed.
On-Page SEO
✓
Title
名称,CAS号, CAS No,分子式,SMILES,InChIKey,EINECS查询 「化源网」 专业化工搜索引擎
Good title length (30-60 characters).
✓
Meta Description
化源网提供快速名称,CAS号, CAS No,分子式,SMILES,InChIKey,EINECS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:104
Good meta description length (100-160 characters).
!
H1 Heading
0 found - ""
Add exactly one H1 heading with primary keywords.
!
Word Count
39
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
Meta keywords are optional (not used by major search engines).
Content and UX
!
Language
Add lang attribute to tag for accessibility and SEO.
!
Images
9 total, 4 missing ALT
Add ALT text to images for accessibility and SEO.
✓
Viewport
width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no
Viewport meta tag properly set for mobile devices.
!
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
1 JSON-LD scripts
Structured data (JSON-LD) found.
Positions in Google
Search Phrases - Google
| Position | Phrase | Page | Snippet |
|---|---|---|---|
| 2 | /en/cas/100-34-5_912... |
Positions in Yandex
Search Phrases - Yandex
| Position | Phrase | Page | Snippet |
|---|---|---|---|
| 11 | /en/cas/119-26-6_829... |