Noao.edu National Optical Astronomy Observatory

Noao.edu Quick Summary

Status

Offline

Server IP address resolved: No

Http response code: None

Last Checked: 08/21/2025

Noao.edu traffic estimate is about 2,743 unique visitors and 5,212 pageviews per day. The approximated value of noao.edu is 94,900 USD. Every unique visitor makes about 1.9 pageviews on average.

Alexa Traffic Rank estimates that noao.edu is ranked number 18,329 in the world, while most of its traffic comes from China, where it occupies as high as 38,392 place.

noao.edu is hosted by ABOR-SUN-CORRIDOR - Arizona Board of Regents, US in United States and we recommend relocating the server to China, as it will speed up noao.edu page load time for the majority of their users. See the list of other websites hosted by ABOR-SUN-CORRIDOR - Arizona Board of Regents, US.

Noao.edu is registered under .EDU top-level domain. Check other websites in .EDU zone.

During the last check (March 06, 2019) noao.edu has an expired wildcard SSL certificate (expired on February 15, 2021), please click the “Refresh” button for SSL Information at the Safety Information section.

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

Relying on Google Mobile-Friendly test noao.edu is well optimized for mobile and tablet devices.

Noao.edu General Information

Noao.edu Audience Geography

Where are website visitors coming from?

Country	Visitors
China CN	26.5%
United States US	23.1%
India IN	7.8%
South Africa ZA	3.4%
Germany DE	3%
Australia AU	1.7%
Iran IR	1.6%
Saudi Arabia SA	1.2%
Nigeria NG	0.8%
Other	30.7%

Country	Rank
South Africa ZA	18973
Ethiopia ET	21648
China CN	38392
Saudi Arabia SA	47869
Philippines PH	49906
Egypt EG	71246
Nigeria NG	71704
United States US	77929
India IN	81352
Australia AU	87015
Pakistan PK	107006
Iran IR	119927

Noao.edu Traffic Distribution

Where do visitors go on noao.edu?

Subdomain	Pageviews
noao.edu	75.1%
iraf.noao.edu	14.88%
ctio.noao.edu	3.61%
kpno.noao.edu	3.16%
other	3.25%

Subdomain	Views per User
iraf.noao.edu	2
noao.edu	1.4
kpno.noao.edu	1
ctio.noao.edu	1

Subdomain	Reach
noao.edu	82.19%
iraf.noao.edu	13.23%
kpno.noao.edu	4.37%
ctio.noao.edu	4.11%

Noao.edu Popularity

How popular is noao.edu?

Period	Global Rank	Global Rank Delta
past 3 months	130851	-34202
past month	131470	-8644
past week	101308	-53392
yesterday	95005	57316

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	173181	-68326	27	56%	1.9	20%
30	194226	8149	24	-3.17%	1.5	-18.62%
7	150915	-107299	34	100%	2	30%
1	175981	128389	3	-79.099%	1	-60.474%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	122386	-22930	54	20%
30	116097	-15584	58	20%
7	89797	-38643	8	50%
1	67985	30118	10	-47.18%

Press rescan to collect fresh statistics for this website...

(Rescan now...)

Noao.edu Safety Information

Rankchart Summary

Safe

Updated: 08/21/2025

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

Safe

Updated: 01/20/2021

(Rescan now...)

Norton ConnectSafe evaluates websites for any unsafe and inapropriate content. The results are important for families with young children.

Google Safe Search

Safe

Updated: 11/06/2016

(Rescan now...)

SafeSearch works as a parental control tool to filter out any content that might be inappropriate for your children.

Google Safe Browsing

Safe

Malware not found

Phishing not detected

Unwanted software not found

Harmfull applications not found

Updated: 01/09/2019

(Rescan now...)

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

McAfee® WebAdvisor

Safe

Updated: 02/25/2021

(Rescan now...)

McAfee assesses noao.edu 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 noao.edu for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Child safety is very good

Updated: 01/10/2019

(Rescan now...)

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

Noao.edu SSL Information

Information about SSL/TLS certificates

(Rescan now...)

Domain	*.noao.edu
Issuer Organization	Unknown
Issuer	COMODO RSA Domain Validation Secure Server CA
Algorithm	RSA-SHA256
Valid form	02/16/2018
Expiration	02/15/2021
Signed	Certificate is not self signed
Additional Domains	*.noao.edu noao.edu

SSL Checker

Noao.edu Server Information

Noao.edu Server Location

Where website hosting server is located?

(Rescan now...)

Noao.edu ASN Information

Information about IP address owner

(Rescan now...)

ASN ID: 62600

ASN Title: ABOR-SUN-CORRIDOR - Arizona Board of Regents, US

Updated: 06/10/2021

Raw ASN data:

Geolocation

ASN Lookup

Noao.edu Domain Name Information

Noao.edu DNS Information

Domain name service records

(Rescan now...)

Host	A Record	TTL
noao.edu	140.252.1.28	10800

Host	MX Record	Priority	TTL
noao.edu	barracuda-1.noao.edu	0	10800

Host	NS Record	TTL
noao.edu	dns-ext-1.noao.edu	10800
noao.edu	dns-int-1.noao.edu	10800
noao.edu	ns1.nso.edu	10800

Host	TXT Record	TTL
noao.edu	v=spf1 ip4:140.252.0.0/16 ip4:139.229.0.0/16 ip4:128.138.64.30/32 a ptr ~all	10800

Noao.edu Whois Information

Information about registered users or assignees of an Internet resource

(Rescan now...)

Raw WHOIS data:

Whois

DNS Lookup

Noao.edu HTML Validation

Noao.edu W3C HTML Markup Validation

HTML markup errors and warnings

(Rescan now...)

Errors:

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Duplicate ID “home”.

Bad element name “gcse:searchbox-only”: Code point “U+003A” is not allowed

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

Warnings:

The first occurrence of ID “home” was here.

Element name “gcse:searchbox-only” cannot be represented as XML 1.0.

This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.

HTML Validator

Noao.edu Desktop Performance

How Well Noao.edu Performs On Desktops?

Website desktop performance and usability tips

(Rescan now...)

Speed

73%

Leverage browser caching

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

Optimize images

Enable compression

Minify CSS

Minify HTML

Updated: 06/02/2017

Noao.edu Mobile Performance

How Optimized Is Noao.edu for Mobile Devices?

Tips on speeding up mobile site performance

(Rescan now...)

Usability

64%

Use legible font sizes

Size tap targets appropriately

Configure the viewport

Updated: 01/21/2018

Noao.edu Nearest Competitors

Estimated Nearest Competitors Of Noao.edu

cybex-online.com
seobility.net
decodo.com
eesi.org
prednisonenow365.com
tome.app
informit.org
tiangolo.com
whitman.edu
toocle.com
noao.edu
viaf.org
bandai.co.jp
championstore.com
deel.com
art.blog
pei.de
videoconverterfactory.com
lodgify.com
legitreviews.com
mgoblue.com
urbanspoon.com

Noao.edu URL Typos

Most common user URL mistypes for noao.edu

www.noao.com
www.noao.net
www.noao.org
www.noao.info
www.noao.biz
www.noao.us
www.noao.mobi
www.oao.edu
www.noao.edu
www.boao.edu
www.nboao.edu
www.bnoao.edu
www.hoao.edu
www.nhoao.edu
www.hnoao.edu
www.joao.edu
www.njoao.edu
www.jnoao.edu
www.moao.edu
www.nmoao.edu
www.mnoao.edu
www.nao.edu
www.niao.edu
www.noiao.edu
www.nioao.edu
www.nkao.edu
www.nokao.edu
www.nkoao.edu
www.nlao.edu
www.nolao.edu
www.nloao.edu
www.npao.edu
www.nopao.edu
www.npoao.edu
www.noo.edu
www.noqo.edu
www.noaqo.edu
www.noqao.edu
www.nowo.edu
www.noawo.edu
www.nowao.edu
www.noso.edu
www.noaso.edu
www.nosao.edu
www.nozo.edu
www.noazo.edu
www.nozao.edu
www.noa.edu
www.noai.edu
www.noaoi.edu
www.noaio.edu
www.noak.edu
www.noaok.edu
www.noako.edu
www.noal.edu
www.noaol.edu
www.noalo.edu
www.noap.edu
www.noaop.edu
www.noapo.edu

Total Resources	37
Number of Hosts	8
Static Resources	28
JavaScript Resources	7
CSS Resources	4

CSS	99.4 KBytes
Images	190.1 KBytes
HTML	12.5 KBytes
JavaScript	706.7 KBytes
Other	756.0 Bytes

Total Resources	37
Number of Hosts	8
Static Resources	28
JavaScript Resources	7
CSS Resources	4

CSS	101.2 KBytes
Images	379.2 KBytes
HTML	12.5 KBytes
JavaScript	700.8 KBytes
Other	925.0 Bytes