ntsb.gov ▷ Home

Quick Summary

Online Status

Offline

Server IP address resolved: No
Http response code: None
Last Checked: 04/24/2024

Ntsb.gov traffic volume is 3,076 unique daily visitors and their 6,460 pageviews. The web value rate of ntsb.gov is 117,165 USD. Each visitor makes around 2.25 page views on average.

By Alexa's traffic estimates ntsb.gov placed at 5,551 position over the world, while the largest amount of its visitors comes from United States, where it takes 30,639 place.

Perfect for ntsb.gov that their data center (provided by company company UUNET - MCI Communications Services, Inc. d/b/a Verizon Business, US) is located in United States, as that empowers most of the visitors to reduce the page load time. See the list of other web pages hosted by UUNET - MCI Communications Services, Inc. d/b/a Verizon Business, US.

Ntsb.gov registered under .GOV top-level domain. Check other websites in .GOV zone.

The last verification results, performed on (April 28, 2021) ntsb.gov show that ntsb.gov has an expired SSL certificate issued by Let's Encrypt (expired on June 18, 2021). Click “Refresh” button for SSL Information at the Safety Information section. Check the list of websites using SSL certificates issued by Let's Encrypt.

In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust ntsb.gov is pretty a safe domain.

Relying Google MobileFriendly test ntsb.gov is well optimized for mobile and tablet devices.

Ntsb.gov General Information

Global Rank

112,623

Average Load Time

0.96sec

Links In Count

3,118

Website Value

$109,500

Audience Geography. Where are ntsb.gov visitors located?

Country	Visitors
United States US	67.9%
United Kingdom GB	3.5%
Canada CA	2.8%
Australia AU	2.6%
India IN	1.9%
Malaysia MY	1.1%
Turkey TR	0.7%
Other	19.6%

Country	Pageviews
United States US	77.4%
United Kingdom GB	4.6%
Canada CA	2%
Australia AU	1.8%
India IN	1.4%
Malaysia MY	1%
Turkey TR	0.8%
Other	10.9%

Country	Rank
United States US	30639
Malaysia MY	41618
Australia AU	56339
Canada CA	72878
United Kingdom GB	78896
Turkey TR	118080
India IN	207172

Where do visitors go on ntsb.gov?

Subdomain	Pageviews
ntsb.gov	81.57%
dms.ntsb.gov	9.5%
app.ntsb.gov	8.33%
other	0.6%

Subdomain	Pageviews per User
dms.ntsb.gov	3
ntsb.gov	2.3
app.ntsb.gov	1

Subdomain	Reach
ntsb.gov	84.27%
app.ntsb.gov	19.21%
dms.ntsb.gov	6.86%

How popular is ntsb.gov?

Period	Global Rank	Global Rank Delta
past 3 months	112623	24915
past month	119822	2364
past week	124723	12958
yesterday	144254	56311

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	140574	30775	35	-26.38%	2.1	-0.943%
30	140948	-1751	36	4%	2.4	6%
7	142861	19284	37	-16.33%	2.6	-5.474%
1	159448	37869	35	-30.65%	3	30%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	108221	24632	62	-25.96%
30	119461	4336	56	-1.79%
7	127731	11763	52	-11.4%
1	156051	75052	5	-44.78%

Ntsb.gov Safety Information

Overview

Last Updated: 04/24/2024

Overall result - ntsb.gov 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: 03/24/2024

ntsb.gov is safe.

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

Google Safe Search

Last Updated: 10/26/2016

ntsb.gov 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

ntsb.gov 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: 02/23/2020

ntsb.gov is safe.

McAfee assesses ntsb.gov 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 ntsb.gov for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/10/2019

ntsb.gov child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	ntsb.gov
Issuer Organization	Let's Encrypt
Issuer	R3
Algorithm	RSA-SHA256
Valid form	03/20/2021
Expiration	06/18/2021
Signed	Certificate is not self signed
Additional Domains	ntsb.gov

Ntsb.gov Server Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 701
ASN Title: UUNET - MCI Communications Services, Inc. d/b/a Verizon Business, US

Last Update: 10/04/2023

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: 701 - 705
ASName: UUNET
ASHandle: AS701
RegDate: 1990-08-02
Updated: 2012-03-20
Ref: https://rdap.arin.net/registry/autnum/701

OrgName: MCI Communications Services, Inc. d/b/a Verizon Business
OrgId: MCICS
Address: 22001 Loudoun County Pkwy
City: Ashburn
StateProv: VA
PostalCode: 20147
Country: US
RegDate: 2006-05-30
Updated: 2018-01-17
Ref: https://rdap.arin.net/registry/entity/MCICS

OrgAbuseHandle: ABUSE3-ARIN
OrgAbuseName: abuse
OrgAbusePhone: +1-800-900-0241
OrgAbuseEmail: abuse-mail@verizonbusiness.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE3-ARIN

OrgTechHandle: SWIPP-ARIN
OrgTechName: swipper
OrgTechPhone: +1-800-900-0241
OrgTechEmail: swipper@verizonbusiness.com
OrgTechRef: https://rdap.arin.net/registry/entity/SWIPP-ARIN

OrgTechHandle: SWIPP9-ARIN
OrgTechName: SWIPPER
OrgTechPhone: +1-800-900-0241
OrgTechEmail: swipper@verizon.com
OrgTechRef: https://rdap.arin.net/registry/entity/SWIPP9-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.
#

Ntsb.gov Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

% DOTGOV WHOIS Server ready
Domain Name: NTSB.GOV
Status: ACTIVE
Security Contact Email: ted.brown@ntsb.gov

>>> Last update of whois database: 2021-05-03T06:02:47Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
;;	no	connection

Host	MX Record	Priority	TTL
;;	servers	no	connection

Host	NS Record	TTL
;;	no	connection

Host	TXT Record	TTL
;;		connection

no
TTL: connection
Email address: servers
Serial: could
Refresh: be
Retry: reached
Expire:
Minimum:

Ntsb.gov HTML Validation

HTML Validation Tool

Errors

Obsolete doctype. Expected “<!DOCTYPE html>”.

Attribute “xmlns:o” not allowed here.

Attribute “__expr-val-dir” not allowed on element “html” at this point.

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

Bad value “/Style Library/NTSB/Scripts/NTSB_YouTubeSupport.js” for attribute “src” on element “script”: Illegal character in path segment: space is not allowed.

Attribute “scroll” not allowed on element “body” at this point.

The “name” attribute on the “img” element is obsolete. Use the “id” attribute instead.

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

The “width” attribute on the “table” element is obsolete. Use CSS instead.

The “border” attribute on the “table” element is obsolete. Use CSS instead.

The “valign” attribute on the “td” element is obsolete. Use CSS instead.

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

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

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

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

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

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

Bad value “/_catalogs/masterpage/Share content from this page with Facebook, Twitter, Email, Print and more.” for attribute “longdesc” on element “img”: Illegal character in path segment: space is not allowed.

The “longdesc” attribute on the “img” element is obsolete. Use a regular “a” element to link to the description.

Duplicate ID “NTSBPageContentContainer”.

Attribute “xmlns:ddwrt” not allowed here.

Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.

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

Unclosed element “div”.

Duplicate ID “rotator-image”.

Duplicate ID “rotator-content”.

Duplicate ID “pcapt”.

Stray doctype.

Stray start tag “html”.

Attribute “xmlns:mso” not allowed here.

Attribute “xmlns:msdt” not allowed here.

Stray start tag “head”.

Attribute “http-equiv” not allowed on element “meta” at this point.

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

A document must not include more than one “meta” element with a “http-equiv” attribute whose value is “content-type”.

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

Stray end tag “head”.

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

Stray end tag “body”.

Stray end tag “html”.

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

The “align” attribute on the “td” element is obsolete. Use CSS instead.

Element “nobr” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)

Bad value “/style library/ntsb/images/SafetyCompassLogo.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)

The “align” attribute on the “div” element is obsolete. Use CSS instead.

Duplicate ID “TweetHeight”.

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

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

Attribute “xmlns:v” not allowed here.

Attribute “xmlns:w” not allowed here.

Attribute “xmlns:dt” not allowed here.

Attribute “xmlns:m” not allowed here.

Bad value “http://www.w3.org/TR/REC-html40” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).

Internal encoding declaration specified “unicode” which is not an ASCII superset. Not changing the encoding.

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

Bad value “File-List” for attribute “rel” on element “link”: The string “File-List” is not a registered keyword.

A “link” element must not appear as a descendant of a “body” element unless the “link” element has an “itemprop” attribute or has a “rel” attribute whose value contains “dns-prefetch”, “pingback”, “preconnect”, “prefetch”, “preload”, “prerender”, or “stylesheet”.

Bad value “themeData” for attribute “rel” on element “link”: The string “themeData” is not a registered keyword.

Bad value “colorSchemeMapping” for attribute “rel” on element “link”: The string “colorSchemeMapping” is not a registered keyword.

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

Duplicate ID “_spDummyLabel1”.

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

Element “script” must not have attribute “defer” unless attribute “src” is also specified.

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

Warnings

Attribute with the local name “xmlns:o” is not serializable as XML 1.0.

The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.

The first occurrence of ID “NTSBPageContentContainer” was here.

Attribute with the local name “xmlns:ddwrt” is not serializable as XML 1.0.

The first occurrence of ID “rotator-image” was here.

The first occurrence of ID “rotator-content” was here.

The first occurrence of ID “pcapt” was here.

Attribute with the local name “xmlns:mso” is not serializable as XML 1.0.

Attribute with the local name “xmlns:msdt” is not serializable as XML 1.0.

The first occurrence of ID “TweetHeight” was here.

Element name “title="ntsb” cannot be represented as XML 1.0.

Attribute with the local name “xmlns:v” is not serializable as XML 1.0.

Attribute with the local name “xmlns:w” is not serializable as XML 1.0.

Attribute with the local name “xmlns:dt” is not serializable as XML 1.0.

Attribute with the local name “xmlns:m” is not serializable as XML 1.0.

Attribute “xmlns” is not serializable as XML 1.0.

Element name “o:p” cannot be represented as XML 1.0.

The first occurrence of ID “_spDummyLabel1” was here.

Element name “ie:menuitem” cannot be represented as XML 1.0.

The “language” attribute on the “script” element is obsolete. You can safely omit it.

Ntsb.gov Desktop Insights

Last tested: 06/03/2017

Desktop

Desktop Speed

53%

Optimize images

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

Leverage browser caching

Avoid landing page redirects

Reduce server response time

Minify CSS

Minify JavaScript

Desktop Resource Breakdown

Total Resources	112
Number of Hosts	21
Static Resources	46
JavaScript Resources	36
CSS Resources	8

Ntsb.gov Mobile Insights

Last tested: 05/17/2017

Mobile

Mobile Usability

67%

Use legible font sizes

Configure the viewport

Mobile Speed

100%

Mobile Resource Breakdown

Total Resources	2
Number of Hosts	1

Ntsb.gov Typos

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www.ntsnb.gov

Ntsb.gov Home

Quick Summary

Ntsb.gov General Information

Ntsb.gov Safety Information

Ntsb.gov Server Information

Ntsb.gov Domain Name Information

Ntsb.gov HTML Validation

Ntsb.gov Desktop Insights

Ntsb.gov Mobile Insights

Ntsb.gov Nearest Competitors

Ntsb.gov Typos