4cs.gia.edu
Registered
Page analyze update date:
2026/05/29 20:20:30
Last whois update date:
2026/07/16 13:41:44
Domain Status
Registered
Paid till
31.07.2027
Available from
30.08.2027
×
![Fullscreen website screenshot]()
4cs.gia.edu Website screenshot
SEO Score
61.64%
90
Score achieved
146
Maximum score
Main Information
Title: Home | GIA 4Cs
Description: empty
Keywords: empty
Page Encoding:
utf-8
Page Filesize: 548 KB
Server Information
IP: 23.50.131.137
Location: Germany,DE,Frankfurt am Main,60313,50.1169,8.6837,Europe/Berlin
Http Server: apache
Encoding: utf-8
Meta Tags List
- charset: UTF-8
- name: viewport content: width=device-width, initial-scale=1.0, viewport-fit=cover
- name: robots content: index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
- property: og:locale content: en_US
- property: og:locale:alternate content: zh_CN
- property: og:locale:alternate content: zh_HK
- property: og:locale:alternate content: ja_JP
- property: og:type content: website
- property: og:title content: Home
- property: og:description content: The 4Cs of diamond quality. For nearly 100 years, we’ve provided consistent and unbiased expertise in the diamond industry. As the home of the 4Cs, we are dedicated to educating the industry and most importantly, protecting consumers. Learn how the 4Cs can help you make your next purchase.Learn More The 4Cs of diamond quality. For […]
- property: og:url content: https://4cs.gia.edu/en-us/
- property: og:site_name content: GIA 4Cs
- property: article:modified_time content: 2025-08-06T18:33:11+00:00
- property: og:image content: https://4cs.gia.edu/wp-content/uploads/2024/07/02_50-50-Module_960x800-8.jpg
- property: og:image:width content: 960
- property: og:image:height content: 800
- property: og:image:type content: image/jpeg
- name: generator content: WordPress 6.8.3
- name: generator content: Elementor 3.33.4; features: e_font_icon_svg, additional_custom_breakpoints; settings: css_print_method-internal, google_font-disabled, font_display-swap
- name: apple-itunes-app content: app-id=1623642988
- name: generator content: Powered by Slider Revolution 6.6.14 - responsive, Mobile-Friendly Slider Plugin for WordPress with comfortable drag and drop interface.
- name: msapplication-TileImage content: https://4cs.gia.edu/wp-content/uploads/2016/07/cropped-favicon-300x300.png
Internal Links
External Links
Whois Information
update_date: 28-May-2025
update_time: 1748390400
expiration_date: 31-Jul-2027
expiration_time: 1816992000
Whois Raw Data
This Registry database contains ONLY .EDU domains.
The data in the EDUCAUSE Whois database is provided
by EDUCAUSE for information purposes in order to
assist in the process of obtaining information about
or related to .edu domain registration records.
The EDUCAUSE Whois database is authoritative for the
.EDU domain.
A Web interface for the .EDU EDUCAUSE Whois Server is
available at: http://whois.educause.edu
By submitting a Whois query, you agree that this information
will not be used to allow, enable, or otherwise support
the transmission of unsolicited commercial advertising or
solicitations via e-mail. The use of electronic processes to
harvest information from this server is generally prohibited
except as reasonably necessary to register or modify .edu
domain names.
-------------------------------------------------------------
Domain Name: GIA.EDU
Registrant:
Gemological Institute of America
5345 Armada Drive
Carlsbad, CA 92008
USA
Administrative Contact:
admin Admin
Gemological Institute of America
5345 Armada Drive
Carlsbad, CA 92008
USA
+1.7606034313
[email protected]
Technical Contact:
admin
Gemological Institute of America
5345 Armada Drive
Carlsbad, CA 92008
USA
+1.7606034313
[email protected]
Name Servers:
A1-7.AKAM.NET
A3-65.AKAM.NET
A11-67.AKAM.NET
A10-66.AKAM.NET
A24-64.AKAM.NET
A6-66.AKAM.NET
Domain record activated: 30-Mar-1996
Domain record last updated: 28-May-2025
Domain expires: 31-Jul-2027
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
561786 bytes
Page size acceptable for fast loading.
!
Resources
106 total
Too many resources. Optimize and combine files for better performance.
✓
Hreflang Tags
5 hreflang tags
Hreflang tags found for multilingual SEO.
!
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
max-age=0, no-cache, no-store
Cache-control headers properly set.
✓
Page Speed
1.73 ms
Excellent loading speed.
On-Page SEO
!
Title
Home | GIA 4Cs
Title too short. Expand to 30-60 characters for better SEO.
!
Meta Description
empty Lenght:5
Meta description too short. Expand to 100-160 characters.
✓
H1 Heading
1 found - "The 4Cs of diamond quality."
Good - single H1 heading found.
✓
Word Count
954
Good content length (500-2000 words recommended).
!
Canonical Tag
Add canonical tag to prevent duplicate content issues.
!
Duplicate Meta
{"generator":3}
Remove duplicate meta tags to avoid conflicts.
✓
Keywords
empty
Meta keywords set (note: not used by major search engines).
Content and UX
✓
Language
en-us
Language attribute properly set.
!
Images
21 total, 8 missing ALT
Add ALT text to images for accessibility and SEO.
✓
Viewport
width=device-width, initial-scale=1.0, viewport-fit=cover
Viewport meta tag properly set for mobile devices.
✓
Open Graph
All OG tags present.
All essential OpenGraph tags present.
✓
Structured Data
1 JSON-LD scripts
Structured data (JSON-LD) found.
Positions in Google
Search Phrases - Google
| Position | Phrase | Page | Snippet |
|---|---|---|---|
| 4 | /en-us/blog/old-mine... | ||
| 5(+20) | /en-us/blog/old-mine... |