Gtlcenter.org Welcome to Center on Great Teachers and Leaders

Gtlcenter.org Overview

Gtlcenter.org belongs to MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US. Check the list of other websites hosted by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US.

In terms of rank-to-traffic ratio, gtlcenter.org has 2,634 unique users per day, viewing 5,269 pages. The rank based value of gtlcenter.org is 3,892 USD. Every user makes 2.16 pageviews on average.

Gtlcenter.org boasts a link base consisting of 311 referring domains and 347 external backlinks, as revealed by the data obtained from web network scanning.

Gtlcenter.org top-level domain belongs to .ORG domain zone. Check other webpages in .ORG zone.

According the last verification test in August 26, 2024, gtlcenter.org has a valid and up-to-date SSL certificate issued by DigiCert, Inc. , certificate expiration date: December 21, 2024. Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by DigiCert, Inc..

Based on data from Google Safe Browsing, Google Safe Search and Symantec gtlcenter.org is a fairly safe domain.

According the Mobile-Friendly test by Google gtlcenter.org is nice optimized for mobile devices and tablets, however the webpage speed could be improved.

Gtlcenter.org Website Safety

Overview

Last Updated: 11/23/2024

Overall result - gtlcenter.org 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: 03/31/2024

gtlcenter.org is safe.

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

Google Safe Search

Last Updated: 11/30/2019

gtlcenter.org 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

gtlcenter.org 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: 03/01/2021

gtlcenter.org is safe.

McAfee assesses gtlcenter.org 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 gtlcenter.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 11/23/2024

gtlcenter.org child safety is unknown.

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

SSL Information

SSL Checker Tool

Domain	gtlcenter.org
Issuer Organization	DigiCert, Inc.
Issuer	GeoTrust Global TLS RSA4096 SHA256 2022 CA1
Algorithm	RSA-SHA256
Valid form	06/21/2024
Expiration	12/21/2024
Signed	Certificate is not self signed
Additional Domains	gtlcenter.org

Gtlcenter.org Rank History

Alexa Rank shows how popular gtlcenter.org is in comparison with other sites. The most popular site has Alexa Rank equals 1. If gtlcenter.org has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to gtlcenter.org and pageviews on gtlcenter.org over the past 3 months.

Gtlcenter.org Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 8075

ASN Title: MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US

Last Update: 03/06/2024

#
# 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: 8068 - 8075
ASName: MICROSOFT-CORP-MSN-AS-BLOCK
ASHandle: AS8068
RegDate: 1997-03-31
Updated: 2013-09-04
Ref: https://rdap.arin.net/registry/autnum/8068

OrgName: Microsoft Corporation
OrgId: MSFT
Address: One Microsoft Way
City: Redmond
StateProv: WA
PostalCode: 98052
Country: US
RegDate: 1998-07-09
Updated: 2017-01-28
Comment: To report suspected security issues specific to traffic emanating from Microsoft online services, including the distribution of malicious content or other illicit or illegal material through a Microsoft online service, please submit reports to:
Comment: * https://cert.microsoft.com.
Comment:
Comment: For SPAM and other abuse issues, such as Microsoft Accounts, please contact:
Comment: * abuse@microsoft.com.
Comment:
Comment: To report security vulnerabilities in Microsoft products and services, please contact:
Comment: * secure@microsoft.com.
Comment:
Comment: For legal and law enforcement-related requests, please contact:
Comment: * msndcc@microsoft.com
Comment:
Comment: For routing, peering or DNS issues, please
Comment: contact:
Comment: * IOC@microsoft.com
Ref: https://rdap.arin.net/registry/entity/MSFT

OrgTechHandle: MRPD-ARIN
OrgTechName: Microsoft Routing, Peering, and DNS
OrgTechPhone: +1-425-882-8080
OrgTechEmail: IOC@microsoft.com
OrgTechRef: https://rdap.arin.net/registry/entity/MRPD-ARIN

OrgAbuseHandle: MAC74-ARIN
OrgAbuseName: Microsoft Abuse Contact
OrgAbusePhone: +1-425-882-8080
OrgAbuseEmail: abuse@microsoft.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/MAC74-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.
#

Gtlcenter.org Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: gtlcenter.org
Registry Domain ID: 2d666b63e2cc4511b5c92631b5e357d7-LROR
Registrar WHOIS Server: whois.enom.com
Registrar URL: http://www.enom.com
Updated Date: 2022-03-29T18:45:31Z
Creation Date: 2013-01-16T14:30:01Z
Registry Expiry Date: 2024-01-16T14:30:01Z
Registrar: eNom, Inc.
Registrar IANA ID: 48
Registrar Abuse Contact Email: abuse@enom.com
Registrar Abuse Contact Phone: +1.4252982646
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Whois Privacy Protection Service, Inc.
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: WA
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ns-cloud-e1.googledomains.com
Name Server: ns-cloud-e3.googledomains.com
Name Server: ns-cloud-e2.googledomains.com
Name Server: ns-cloud-e4.googledomains.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2022-07-03T20:19:16Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
gtlcenter.org	38.118.81.80	300

Host	MX Record	Priority	TTL

Host	NS Record	TTL
gtlcenter.org	ns2.air.org	300
gtlcenter.org	ns1.air.org	300

Host	TXT Record	TTL
gtlcenter.org	1ucvnbptq8a0u826392s0krjjq	300

ns1.air.org
TTL: 300
Email address: webadmin.air.org
Serial: 8
Refresh: 10800
Retry: 3600
Expire: 2419200
Minimum: 300

Gtlcenter.org HTML Check

HTML Validation Tool

Errors

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

A “charset” attribute on a “meta” element found after the first 1024 bytes.

Bad value “cleartype” for attribute “http-equiv” on element “meta”.

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

Attribute “alt” not allowed on element “input” at this point.

Bad value “window.location'document.forms['aggregatorSelection'].term.value'” for attribute “onclick” on element “input”: missing ; before statement

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

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

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

Warnings

The “banner” role is unnecessary for element “header”.

The “navigation” role is unnecessary for element “nav”.

Gtlcenter.org Desktop Performance

Last tested: 04/21/2016

Desktop Speed

58%

Enable compression

Reduce server response time

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

Minify CSS

Leverage browser caching

Minify JavaScript

Optimize images

Minify HTML

Desktop Resource Breakdown

Total Resources	128
Number of Hosts	14
Static Resources	109
JavaScript Resources	11
CSS Resources	50

Gtlcenter.org Mobile Insights

Last tested: 04/21/2016

Mobile Usability

74%

Size content to viewport

Size tap targets appropriately

Mobile Speed

53%

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

Enable compression

Minify CSS

Leverage browser caching

Minify JavaScript

Optimize images

Reduce server response time

Minify HTML

Mobile Resource Breakdown

Total Resources	128
Number of Hosts	14
Static Resources	108
JavaScript Resources	11
CSS Resources	50

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Gtlcenter.org Welcome to Center on Great Teachers and Leaders

Gtlcenter.org Overview

Gtlcenter.org Website Safety

Gtlcenter.org Rank History

Gtlcenter.org Hosting Information

Gtlcenter.org Domain Registration and Settings

Gtlcenter.org HTML Check

Gtlcenter.org Desktop Performance

Gtlcenter.org Mobile Insights

Gtlcenter.org Similar Audits

Gtlcenter.org Common Typos