costerdiamonds.com ▶ Royal Coster Diamonds - 175 years of diamond craftsmanship

Costerdiamonds.com | Key Trends

Online Status

Offline

Server IP address resolved: No
Http response code: None
Last Checked: 01/25/2025

Costerdiamonds.com attracts 281 unique visitors daily, generating 563 pageviews. The estimated value of costerdiamonds.com is 6,249 USD. Each visitor views approximately 2.14 pages on average.

According to Majestic's traffic estimates, costerdiamonds.com ranks 6,842 globally.

See the list of other websites hosted by CLOUDFLARENET - Cloudflare, Inc., US.

Costerdiamonds.com is registered with the .COM top-level domain. Explore additional websites within the .COM zone.

A recent examination on (July 22, 2024), indicates that costerdiamonds.com has an expired SSL certificate issued by Google Trust Services (expired on September 11, 2024). Click the "Refresh" button in the Safety Information section for updated SSL details. See the list of websites using SSL certificates issued by Google Trust Services.

According to Google Safe Browsing, Google Safe Search and Symantec costerdiamonds.com appears to be a safe domain.

Based on Google's Mobile-Friendly test, costerdiamonds.com is optimized for mobile and tablet devices.

Costerdiamonds.com | General Site Information

Global Rank

1,288,032

Average Load Time

5.60sec

Links In Count

Website Value

$5,840

Audience Geography. Where are costerdiamonds.com visitors located?

Country	Visitors

Country	Pageviews

Country	Rank

Where do visitors go on costerdiamonds.com?

Subdomain	Pageviews
costerdiamonds.com	100%

Subdomain	Pageviews per User
costerdiamonds.com	3

Subdomain	Reach
costerdiamonds.com	100%

How popular is costerdiamonds.com?

Period	Global Rank	Global Rank Delta
past 3 months	1288032	1956
past month	2200166	839216
past week	4891269	2176416

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	1642856	85832	1	-4.785%	2	-11.6%
30	1993677	235310	1	-15.08%	3	100%
7	5116391	3187520	0	-91.503%	1	-75.787%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	1199024	-36480	3	7%
30	2384252	1132975	1	-57.937%
7	4724059	1137506	3	-64.865%

Costerdiamonds.com | Safety and Security Details

Overview

Last Updated: 01/25/2025

Overall result - costerdiamonds.com is safe.

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Last Updated: 03/23/2024

costerdiamonds.com is safe.

Norton ConnectSafe evaluates costerdiamonds.com for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 10/02/2017

costerdiamonds.com is safe.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing

Last Updated: 01/09/2019

costerdiamonds.com is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

Site Advisor

Last Updated: 02/27/2021

costerdiamonds.com is safe.

McAfee assesses costerdiamonds.com for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze costerdiamonds.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/25/2025

costerdiamonds.com child safety is unknown.

The WOT calculates reputation of the costerdiamonds.com. This reputation system receives ratings from users and information from third-party sources, assesses the costerdiamonds.com for safety features and confirms, whether costerdiamonds.com is suitable for children.

Costerdiamonds.com | SSL Certificate Information

SSL Checker Tool

Domain	costerdiamonds.com
Issuer Organization	Google Trust Services
Issuer	WE1
Algorithm	ecdsa-with-SHA256
Valid form	06/13/2024
Expiration	09/11/2024
Signed	Certificate is not self signed
Additional Domains	costerdiamonds.com *.costerdiamonds.com

Costerdiamonds.com | Server and Hosting Details

Server Location

Geolocation Tool

Costerdiamonds.com ASN Information

ASN Lookup Tool

ASN ID: 13335
ASN Title: CLOUDFLARENET - Cloudflare, Inc., US

Last Update: 12/18/2024

ASN Whois

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 13335
ASName: CLOUDFLARENET
ASHandle: AS13335
RegDate: 2010-07-14
Updated: 2017-02-17
Comment: All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref: https://rdap.arin.net/registry/autnum/13335

OrgName: Cloudflare, Inc.
OrgId: CLOUD14
Address: 101 Townsend Street
City: San Francisco
StateProv: CA
PostalCode: 94107
Country: US
RegDate: 2010-07-09
Updated: 2017-02-17
Comment: All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref: https://rdap.arin.net/registry/entity/CLOUD14

OrgTechHandle: ADMIN2521-ARIN
OrgTechName: Admin
OrgTechPhone: +1-650-319-8930
OrgTechEmail: rir@cloudflare.com
OrgTechRef: https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

OrgAbuseHandle: ABUSE2916-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-650-319-8930
OrgAbuseEmail: abuse@cloudflare.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE2916-ARIN

OrgNOCHandle: NOC11962-ARIN
OrgNOCName: NOC
OrgNOCPhone: +1-650-319-8930
OrgNOCEmail: noc@cloudflare.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC11962-ARIN

RNOCHandle: NOC11962-ARIN
RNOCName: NOC
RNOCPhone: +1-650-319-8930
RNOCEmail: noc@cloudflare.com
RNOCRef: https://rdap.arin.net/registry/entity/NOC11962-ARIN

RTechHandle: ADMIN2521-ARIN
RTechName: Admin
RTechPhone: +1-650-319-8930
RTechEmail: rir@cloudflare.com
RTechRef: https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

RAbuseHandle: ABUSE2916-ARIN
RAbuseName: Abuse
RAbusePhone: +1-650-319-8930
RAbuseEmail: abuse@cloudflare.com
RAbuseRef: https://rdap.arin.net/registry/entity/ABUSE2916-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

Costerdiamonds.com | Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: COSTERDIAMONDS.COM
Registry Domain ID: 211986_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.cronon.net
Registrar URL: http://www.cronon.net
Updated Date: 2024-04-16T07:01:42Z
Creation Date: 1997-04-14T04:00:00Z
Registry Expiry Date: 2025-04-15T04:00:00Z
Registrar: Cronon GmbH
Registrar IANA ID: 141
Registrar Abuse Contact Email: abuse-domains@cronon.net
Registrar Abuse Contact Phone: +4930398020
Domain Status: ok https://icann.org/epp#ok
Name Server: CHASE.NS.CLOUDFLARE.COM
Name Server: SHARON.NS.CLOUDFLARE.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-01-09T14:42:29Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Costerdiamonds.com | HTML Validation Report

HTML Validation Tool

Errors

Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.

Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.

The “font” element is obsolete. Use CSS instead.

CSS: “italics”: Parse Error.

Attribute “webkit-playsinline” not allowed on element “video” at this point.

Duplicate ID “video”.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Element “p” not allowed as child of element “h5” in this context. (Suppressing further errors from this subtree.)

Bad value “nope” for attribute “autocomplete” on element “input”: The string “nope” is not a valid autofill field name.

Bad value “mailto:support@costerdiamonds.com?subject=I am interested in'The Classic with a Twist' (#1231505)” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

End tag “br”.

Duplicate ID “product-gmt-details”.

Bad value “mailto:support@costerdiamonds.com?subject=I am interested in'Twisted Pave Solitaire Diamond Ring' (#1262041)” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Bad value “mailto:support@costerdiamonds.com?subject=I am interested in'The Minimalist Diamond Ring' (#1283026)” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Bad value “mailto:support@costerdiamonds.com?subject=I am interested in'Leverback Hoop Diamond Earrings with Pave' (#1730180)” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Bad value “mailto:support@costerdiamonds.com?subject=I am interested in'Loose Open Braided Diamond Bracelet' (#3020039)” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Bad value “mailto:support@costerdiamonds.com?subject=I am interested in'Sunshine Diamond Pendant with Double Halo' (#2020083)” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Stray start tag “script”.

The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control.

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

The first occurrence of ID “video” was here.

Empty heading.

The first occurrence of ID “product-gmt-details” was here.

The “type” attribute is unnecessary for JavaScript resources.

Costerdiamonds.com | Desktop Performance Insights

Last tested: 10/24/2015

Desktop

Desktop Speed

30%

Enable compression

Reduce server response time

Minify JavaScript

Leverage browser caching

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Minify CSS

Optimize images

Prioritize visible content

Minify HTML

Desktop Resource Breakdown

Total Resources	126
Number of Hosts	18
Static Resources	45
JavaScript Resources	49
CSS Resources	32

Costerdiamonds.com | Mobile Performance Insights

Last tested: 08/19/2019

Mobile

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

62%

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Leverage browser caching

Optimize images

Minify JavaScript

Minify CSS

Mobile Resource Breakdown

Total Resources	124
Number of Hosts	31
Static Resources	38
JavaScript Resources	66
CSS Resources	6

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Costerdiamonds.com Royal Coster Diamonds - 175 years of diamond craftsmanship

The worlds oldest and most trusted diamond factory. We have the largest diamond stock of Europe and our craftsmen and women can create any piece you d...

Costerdiamonds.com | Key Trends

Costerdiamonds.com | General Site Information

Costerdiamonds.com | Safety and Security Details

Costerdiamonds.com | Server and Hosting Details

Costerdiamonds.com | Domain Name Information

Costerdiamonds.com | HTML Validation Report

Costerdiamonds.com | Desktop Performance Insights

Costerdiamonds.com | Mobile Performance Insights

Costerdiamonds.com | Competitors Analysis

Costerdiamonds.com | Common Typographical Errors