costco.com.tw ▶ Costco Taiwan 好市多線上購物

Costco.com.tw | Key Trends

Online Status

Offline

Server IP address resolved: No
Http response code: None
Last Checked: 01/23/2025

Costco.com.tw attracts 9,932 unique visitors daily, generating 45,189 pageviews. The estimated value of costco.com.tw is 787,349 USD. Each visitor views approximately 4.87 pages on average.

According to Majestic's traffic estimates, costco.com.tw ranks 90,112 globally, with the majority of its visitors coming from Taiwan, where it holds the 269 position.

Costco.com.tw is hosted by GOOGLE-PRIVATE-CLOUD - Google LLC, US in United States; however, migrating the server to Taiwan could further improve page load times for the majority of users.

See the list of other websites hosted by GOOGLE-PRIVATE-CLOUD - Google LLC, US.

Costco.com.tw is registered with the .TW top-level domain. Explore additional websites within the .TW zone.

The last inspection on (October 13, 2024), confirms that costco.com.tw holds a valid and current SSL certificate issued by DigiCert Inc expiring on August 08, 2025. Click the "Refresh" button in the Safety Information section for updated SSL details. See the list of websites using SSL certificates issued by DigiCert Inc.

According to Google Safe Browsing, Symantec and Web of Trust costco.com.tw appears to be a safe domain.

Based on Google's Mobile-Friendly test, costco.com.tw is optimized for mobile and tablet devices, although the web page loading speed could be improved.

Costco.com.tw | General Site Information

Global Rank

15,659

Average Load Time

1.26sec

Links In Count

106

Website Value

$735,840

Audience Geography. Where are costco.com.tw visitors located?

Country	Visitors
Taiwan TW	96%
United States US	0.9%
Other	3.1%

Country	Pageviews
Taiwan TW	98.3%
United States US	0.4%
Other	1.3%

Country	Rank
Taiwan TW	269
United States US	215575

Where do visitors go on costco.com.tw?

Subdomain	Pageviews
costco.com.tw	99.21%
warehouses.costco.com.tw	0.78%
other	0.01%

Subdomain	Pageviews per User
costco.com.tw	4.69
warehouses.costco.com.tw	1.6

Subdomain	Reach
costco.com.tw	99.11%
warehouses.costco.com.tw	2.31%

How popular is costco.com.tw?

Period	Global Rank	Global Rank Delta
past 3 months	15659	-98
past month	15565	-776
past week	13889	-1872
yesterday	11305	-4820

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	13159	0	562	-0.887%	4.55	0.2%
30	12758	-1020	585	10%	4.69	3%
7	11475	-1970	661	18%	4.7	4%
1	11605	-1341	68	10%	3.6	-28.71%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	18106	-13	455	-1.2%
30	18180	-661	462	7%
7	16183	-1900	53	10%
1	12336	-6962	69	50%

Costco.com.tw | Safety and Security Details

Overview

Last Updated: 01/23/2025

Unknown status.

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: 03/21/2024

costco.com.tw is safe.

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

Google Safe Search

Last Updated: 01/23/2025

Unknown status.

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

costco.com.tw 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: 02/22/2021

costco.com.tw is safe.

McAfee assesses costco.com.tw 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 costco.com.tw for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/09/2019

costco.com.tw child safety is very good.

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

Costco.com.tw | SSL Certificate Information

SSL Checker Tool

Domain	www.costco.com.tw
Issuer Organization	DigiCert Inc
Issuer	DigiCert Global G2 TLS RSA SHA256 2020 CA1
Algorithm	RSA-SHA256
Valid form	08/09/2024
Expiration	08/08/2025
Signed	Certificate is not self signed
Additional Domains	www.costco.com.tw costco.com.tw image-store.costco.com.tw origin.costco.com.tw content.costco.com.tw

Costco.com.tw | Server and Hosting Details

Server Location

Geolocation Tool

Costco.com.tw ASN Information

ASN Lookup Tool

ASN ID: 396982
ASN Title: GOOGLE-PRIVATE-CLOUD - Google LLC, US

Last Update: 07/20/2024

ASN Whois

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2019, American Registry for Internet Numbers, Ltd.
#

ASNumber: 396982
ASName: GOOGLE-PRIVATE-CLOUD
ASHandle: AS396982
RegDate: 2018-08-15
Updated: 2018-08-15
Comment: *** This ASN is used for Google Private Cloud ***
Comment:
Comment: Direct all copyright and legal complaints to
Comment: https://support.google.com/legal/go/report
Comment:
Comment: Direct all spam and abuse complaints to
Comment: https://support.google.com/code/go/gce_abuse_report
Comment:
Comment: For fastest response, use the relevant forms above.
Comment:
Comment: Complaints can also be sent to the GC Abuse desk
Comment: (google-cloud-compliance@google.com)
Comment: but may have longer turnaround times.
Comment:
Comment: Complaints sent to any other POC will be ignored.
Ref: https://rdap.arin.net/registry/autnum/396982

OrgName: Google LLC
OrgId: GOOGL-2
Address: 1600 Amphitheatre Parkway
City: Mountain View
StateProv: CA
PostalCode: 94043
Country: US
RegDate: 2006-09-29
Updated: 2017-12-21
Comment: *** The IP addresses under this Org-ID are in use by Google Cloud customers ***
Comment:
Comment: Direct all copyright and legal complaints to
Comment: https://support.google.com/legal/go/report
Comment:
Comment: Direct all spam and abuse complaints to
Comment: https://support.google.com/code/go/gce_abuse_report
Comment:
Comment: For fastest response, use the relevant forms above.
Comment:
Comment: Complaints can also be sent to the GC Abuse desk
Comment: (google-cloud-compliance@google.com)
Comment: but may have longer turnaround times.
Comment:
Comment: Complaints sent to any other POC will be ignored.
Ref: https://rdap.arin.net/registry/entity/GOOGL-2

OrgTechHandle: ZG39-ARIN
OrgTechName: Google LLC
OrgTechPhone: +1-650-253-0000
OrgTechEmail: arin-contact@google.com
OrgTechRef: https://rdap.arin.net/registry/entity/ZG39-ARIN

OrgAbuseHandle: GCABU-ARIN
OrgAbuseName: GC Abuse
OrgAbusePhone: +1-650-253-0000
OrgAbuseEmail: google-cloud-compliance@google.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/GCABU-ARIN

OrgNOCHandle: GCABU-ARIN
OrgNOCName: GC Abuse
OrgNOCPhone: +1-650-253-0000
OrgNOCEmail: google-cloud-compliance@google.com
OrgNOCRef: https://rdap.arin.net/registry/entity/GCABU-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2019, American Registry for Internet Numbers, Ltd.
#

Costco.com.tw | Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: costco.com.tw
Domain Status: clientTransferProhibited
Registrant:

Costco Wholesale Membership, Inc.
admincontact@costco.com
US
(Redacted for privacy)

Administrative Contact:
(Redacted for privacy)

Technical Contact:
(Redacted for privacy)

Record expires on 2025-04-08 00:00:00 (UTC+8)
Record created on 1999-02-22 15:02:01 (UTC+8)

Domain servers in listed order:
dns1.costco.com.tw 123.51.211.36
dns2.costco.com.tw 220.130.22.44
dns3.costco.com.tw 122.147.54.30

Registration Service Provider: CSC Corporate Domains, Inc.
Registration Service URL: http://www.csccorporatedomains.com

Provided by Registry Services, LLC. Registry Gateway Services

DNS Records

DNS Lookup Tool

Host	A Record	TTL
costco.com.tw	35.192.62.159	300

Host	MX Record	Priority	TTL
costco.com.tw	mx0a-001f9d01.pphosted.com	10	300
costco.com.tw	mx0b-001f9d01.pphosted.com	10	300

Host	NS Record	TTL
costco.com.tw	dns2.costco.com.tw	3600
costco.com.tw	dns3.costco.com.tw	3600
costco.com.tw	dns1.costco.com.tw	3600

Host	TXT Record	TTL
costco.com.tw	google-site-verification=rszD-_7iplQgfpqWWVnGvnofwJWcFTX1gJd_Ti7aLXQ	3600
costco.com.tw	v=spf1 include:spf-001f9d01.pphosted.com include:_spf.costco.com.tw include:_spf.google.com -all	3600
costco.com.tw	google-site-verification=YPeGbF58Cw8oKqHsBCtJFQbgxIHoerh9_1R0IFjq_Hs	3600

dns2.costco.com.tw
TTL: 3600
Email address: admin.costco.com.tw
Serial: 2011120948
Refresh: 3600
Retry: 600
Expire: 1209600
Minimum: 3600

Costco.com.tw | HTML Validation Report

HTML Validation Tool

Errors

Bad value “zh_TW” for attribute “lang” on element “html”: The language subtag “zh_tw” is not a valid language subtag.

Bad value “og:http://ogp.me/ns#” for attribute “prefix” on element “head”.

A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.

Element “meta” is missing one or more of the following attributes: “content”, “property”.

Bad value “link” for attribute “role” on element “li”.

An “img” element which has an “alt” attribute whose value is the empty string must not have a “role” attribute with any value other than “none” or “presentation”

Attribute “name” not allowed on element “div” at this point.

Attribute “value” not allowed on element “a” at this point.

Bad value “en_TW” for attribute “lang” on element “a”: The language subtag “en_tw” is not a valid language subtag.

Duplicate ID “lang_selector_LangCurrencyComponent”.

Duplicate ID “miniCartIcon”.

An element with “role=menuitem” must be contained in, or owned by, an element with “role=menubar” or “role=menu”.

The element “label” must not appear as a descendant of the “a” element.

Duplicate ID “js-site-search-input”.

Element “img” is missing required attribute “src”.

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

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

Element “p” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)

No “p” element in scope but a “p” end tag seen.

Stray end tag “div”.

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

The element “footer” must not appear as a descendant of the “footer” element.

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

Bad value “$(” for attribute “onclick” on element “i”: syntax error

Attribute “href” not allowed on element “div” at this point.

Bad value “zh_TW” for attribute “lang” on element “a”: The language subtag “zh_tw” is not a valid language subtag.

End tag “li” implied, but there were open elements.

Unclosed element “a”.

Start tag “a” seen but an element of the same type was already open.

No “a” element in scope but a “a” end tag seen.

The “for” attribute of the “label” element must refer to a non-hidden form control.

The “aria-labelledby” attribute must point to an element in the same document.

The “aria-controls” attribute must point to an element in the same document.

Warnings

The first occurrence of ID “lang_selector_LangCurrencyComponent” was here.

The “textbox” role is unnecessary for an “input” element that has no “list” attribute and whose type is “text”.

The “button” role is unnecessary for element “button”.

The first occurrence of ID “miniCartIcon” was here.

The first occurrence of ID “js-site-search-input” was here.

Costco.com.tw | Desktop Performance Insights

Last tested: 05/28/2018

Desktop

Desktop Speed

26%

Optimize images

Leverage browser caching

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

Prioritize visible content

Minify JavaScript

Minify CSS

Reduce server response time

Desktop Resource Breakdown

Total Resources	99
Number of Hosts	10
Static Resources	88
JavaScript Resources	19
CSS Resources	8

Costco.com.tw | Mobile Performance Insights

Last tested: 05/28/2018

Mobile

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

30%

Optimize images

Leverage browser caching

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

Prioritize visible content

Minify JavaScript

Minify CSS

Mobile Resource Breakdown

Total Resources	93
Number of Hosts	11
Static Resources	76
JavaScript Resources	19
CSS Resources	8

Costco.com.tw | Common Typographical Errors

www.costco.com
www.costco.net
www.costco.org
www.costco.info
www.costco.biz
www.costco.us
www.costco.mobi
www.ostco.com.tw
www.costco.com.tw
www.xostco.com.tw
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Costco.com.tw Costco Taiwan 好市多線上購物 | Costco 好市多線上購物

Costco.com.tw | Key Trends

Costco.com.tw | General Site Information

Costco.com.tw | Safety and Security Details

Costco.com.tw | Server and Hosting Details

Costco.com.tw | Domain Name Information

Costco.com.tw | HTML Validation Report

Costco.com.tw | Desktop Performance Insights

Costco.com.tw | Mobile Performance Insights

Costco.com.tw | Competitors Analysis

Costco.com.tw | Common Typographical Errors