www.chemindex.com
Registered
Page analyze update date:
2026/02/18 06:20:12
Last whois update date:
2026/07/08 17:52:13
Domain Status
Registered
Paid till
21.03.2027
Available from
20.04.2027
×
![Fullscreen website screenshot]()
www.chemindex.com Website screenshot
SEO Score
55.48%
81
Score achieved
146
Maximum score
Main Information
Title: ChemIndex - a free chemical CAS search database
Description: A free chemical CAS search database with chemical suppliers directory provided by ChemIndex
Keywords: unknown
Page Encoding:
utf-8
Page Filesize: 10 KB
Server Information
IP: 222.73.8.48
Location: China,CN,,,34.7732,113.722,Asia/Shanghai
Http Server: nginx
Encoding: utf-8
Meta Tags List
- name: viewport content: width=device-width, initial-scale=1, shrink-to-fit=no
- equiv: Content-Type content: text/html; charset=utf-8
- name: keywords content: CAS, CAS NO, Chemical Suppliers, Chemical Directory, Chemistry Registry Number
- name: description content: A free chemical CAS search database with chemical suppliers directory provided by ChemIndex
Internal Links
External Links
Whois Information
domain_name: chemindex.com
update_date: 2026-02-03T01:08:18Z
update_time: 1770080898
creation_date: 2001-03-22T00:41:13Z
creation_time: 985221673
expiration_date: 2027-03-21T23:41:13Z
Whois Raw Data
Domain Name: CHEMINDEX.COM
Registrar: Xiamen 35.com Information Co., Ltd.
Domain Status: client transfer prohibited
Creation Date: 2001-03-22T00:41:13Z
Registry Expiry Date: 2027-03-21T23:41:13Z
Updated Date: 2026-02-03T01:08:18Z
Name Server: NS1.CHINANETSUN-DNS.COM
Name Server: NS2.CHINANETSUN-DNS.COM
REGISTRAR Contact: Xiamen 35.com Information Co., Ltd.
>>> Last update of RDAP database: 2026-07-08T17:52:13Z
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
10567 bytes
Page size acceptable for fast loading.
✓
Resources
27 total
Moderate number of resources. Consider combining files.
✓
Hreflang Tags
0 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
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
3.28 ms
Excellent loading speed.
On-Page SEO
✓
Title
ChemIndex - a free chemical CAS search database
Good title length (30-60 characters).
!
Meta Description
A free chemical CAS search database with chemical suppliers directory provided by ChemIndex Lenght:91
Meta description too short. Expand to 100-160 characters.
✓
H1 Heading
1 found - "chemical CAS search database"
Good - single H1 heading found.
!
Word Count
114
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
24 total, 23 missing ALT
Add ALT text to images for accessibility and SEO.
✓
Viewport
width=device-width, initial-scale=1, shrink-to-fit=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
0 JSON-LD scripts
Add structured data (JSON-LD) for rich snippets and better SEO.
Positions in Google
Search Phrases - Google
| Position | Phrase | Page | Snippet |
|---|---|---|---|
| 2 | /ru-80-15-9-cas.html |