osa.org - Home

Quick Summary

Online Status

Online

Server IP address resolved: Yes
Http response code: 200
Response time: 0.91 sec.
Last Checked: 07/01/2024

Over the time osa.org has been ranked as high as 3,922 in the world, while most of its traffic comes from China, where it reached as high as 10,504 position.

Osa.org receives about 4,090 unique visitors and 8,589 pageviews per day. The estimated value of osa.org is 148,920 USD. Each unique visitor makes about 2.1 pageviews on average.

Osa.org is registered under .ORG top-level domain. Check other websites in .ORG zone.

At the time of the last check (October 10, 2024) osa.org has a valid and up-to-date SSL certificate issued by DigiCert Inc that expires on April 25, 2025. Check other websites using SSL certificates issued by DigiCert Inc.

According to Google Safe Browsing, Google Safe Search and Symantec osa.org is quite a safe domain.

Mobile-Friendly test indicates that osa.org is well optimized for mobile and tablet devices, however website page loading time could be improved.

Osa.org General Information

Global Rank

79,257

Average Load Time

4.15sec

Links In Count

1,735

Website Value

$148,920

Audience Geography. Where are osa.org visitors located?

Country	Rank
China CN	10504
Japan JP	27609
India IN	61617
United States US	126584

Country	Percent of Pageviews
China CN	68.9%
Japan JP	13.1%
United States US	6.1%
India IN	4.4%
Other	7.4%

Country	Percent of Visitors
China CN	67.2%
Japan JP	13.9%
United States US	6%
India IN	3.6%
Other	9.4%

Where do visitors go on osa.org?

Subdomain	Pageviews
osa.org	88.82%
account.osa.org	6.03%
other	5.15%

Subdomain	Pageviews per User
osa.org	2.3
account.osa.org	2

Subdomain	Reach
osa.org	88.09%
account.osa.org	7.71%

How popular is osa.org?

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	75165	7701	95	-10.59%
30	60421	-12875	12	30%
7	60417	-93474	13	200%
1	47715	-1830	20	4%

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	101726	16753	54	-19.42%	2.1	-9.957%
30	78206	-18566	76	40%	2.3	5%
7	93467	-150656	62	200%	2	10%
1	80818	14266	8	-19.8%	2	-23.21%

Period	Global Rank	Global Rank Delta
past 3 months	79257	9782
past month	62368	-14141
past week	65775	-103037
yesterday	52511	1973

Osa.org Alexa Rank History

Alexa Rank shows how popular osa.org is in comparison with other sites. The most popular site has Alexa Rank equals 1. If osa.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 osa.org and pageviews on osa.org over the past 3 months.

Osa.org Safety Information

Overview

Last Updated: 11/05/2024

Overall result - "osa.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: 03/24/2024

osa.org is safe.

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

Google Safe Search

Last Updated: 11/04/2016

osa.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

Malware not found at "osa.org".
"osa.org" is not a phishing page.
"osa.org" does not install unwanted software.
"osa.org" does not contain harmfull applications.
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: 02/24/2021

osa.org is safe.

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

Web of Trust

Last Updated: 11/05/2024

osa.org child safety isunknown.

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

SSL Information

SSL Checker Tool

Domain	www.osa.org
Issuer Organization	DigiCert Inc
Issuer	DigiCert Global G2 TLS RSA SHA256 2020 CA1
Algorithm	RSA-SHA256
Valid form	04/17/2024
Expiration	04/25/2025
Signed	Certificate is not self signed
Additional Domains	www.osa.org osa.org

Osa.org Server Information

Server Location

Geolocation Tool

Washington

District of Columbia

United States

ASN Information

ASN Lookup Tool

ASN ID: 174
ASN Title: COGENT-174 - Cogent Communications, 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/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: 174
ASName: COGENT-174
ASHandle: AS174
RegDate: 1996-05-15
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/174

OrgName: Cogent Communications
OrgId: COGC
Address: 2450 N Street NW
City: Washington
StateProv: DC
PostalCode: 20037
Country: US
RegDate: 2000-05-29
Updated: 2017-08-17
Ref: https://rdap.arin.net/registry/entity/COGC

ReferralServer: rwhois://rwhois.cogentco.com:4321

OrgNOCHandle: ZC108-ARIN
OrgNOCName: Cogent Communications
OrgNOCPhone: +1-877-875-4311
OrgNOCEmail: noc@cogentco.com
OrgNOCRef: https://rdap.arin.net/registry/entity/ZC108-ARIN

OrgAbuseHandle: COGEN-ARIN
OrgAbuseName: Cogent Abuse
OrgAbusePhone: +1-877-875-4311
OrgAbuseEmail: abuse@cogentco.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/COGEN-ARIN

OrgTechHandle: IPALL-ARIN
OrgTechName: IP Allocation
OrgTechPhone: +1-877-875-4311
OrgTechEmail: ipalloc@cogentco.com
OrgTechRef: https://rdap.arin.net/registry/entity/IPALL-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.
#

%rwhois V-1.5:0010b0:00 rwhois.cogentco.com (CGNT rwhoisd 0.0.0)
%error 230 No objects found

Osa.org Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: osa.org
Registry Domain ID: 2c53a33ea007439b85474ddde6866cd2-LROR
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://www.networksolutions.com
Updated Date: 2023-10-23T13:19:02Z
Creation Date: 1993-01-04T05:00:00Z
Registry Expiry Date: 2027-01-03T05:00:00Z
Registrar: Network Solutions, LLC
Registrar IANA ID: 2
Registrar Abuse Contact Email: domain.operations@web.com
Registrar Abuse Contact Phone: +1.8777228662
Domain Status: ok https://icann.org/epp#ok
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Optical Society of America
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: DC
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: yogi.osa.org
Name Server: yogi2.osa.org
Name Server: ns1.osa.org
Name Server: ns2.osa.org
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-09-24T12:34:01Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
osa.org	65.202.222.221	14430

Host	MX Record	Priority	TTL
osa.org	smtpin1.osa.org	10	15000

Host	NS Record	TTL
osa.org	yogi.osa.org	14430
osa.org	yogi2.osa.org	14430

Host	TXT Record	TTL
osa.org	MS=ms29384656	3600
osa.org	v=spf1 ip4:65.202.222.3/32 ip4:38.95.177.3/32 ip4:67.216.225.67 include:servers.mcsv.net ~all	14640
osa.org	MS=ms74772926	3600
osa.org	have-i-been-pwned-verification=103352edfd47702f1011acd9447edeac	300
osa.org	ZOOM_verify_TJ4RH-ScT5qw0vI7_buXTA	14400
osa.org	adobe-idp-site-verification=a279589f411b05463947b84bb4825e32643fe38a986aaa43159a694dcda6059a	14400
osa.org	google-site-verification=A3ca5BfvYwpqo_1vEhYBScz29aiyQyy_f4b-AuHs5uM	14400

yogi.osa.org
TTL: 14430
Email address: administrator.osa.org
Serial: 2013043131
Refresh: 3600
Retry: 1800
Expire: 1209600
Minimum: 14400

Osa.org HTML Validation

HTML Validation Tool

Errors

Duplicate attribute “class”.

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

Bad value “http://www.osa-opn.org/opn/media/Images/Articles/2017/1712/Features/Kentico-Cover-Dec17.jpg?ext=.jpg>” for attribute “src” on element “img”: Illegal character in query: “>” is not allowed.

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

Attribute “content” not allowed on element “span” at this point.

The “itemprop” attribute was specified, but the element is not a property of any item.

Warnings

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

Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

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

Osa.org Desktop Insights

Desktop Page Insights Tool

Last tested: 12/01/2017

Desktop

Desktop Speed

64%

Optimize images

Leverage browser caching

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

Avoid landing page redirects

Minify JavaScript

Desktop Resource Breakdown

Total Resources	50
Number of Hosts	10
Static Resources	24
JavaScript Resources	9
CSS Resources	6

Osa.org Mobile Insights

Mobile Page Insights Tool

Last tested: 11/30/2017

Mobile

Mobile Usability

98%

Size tap targets appropriately

Mobile Speed

56%

Optimize images

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

Leverage browser caching

Avoid landing page redirects

Minify JavaScript

Mobile Resource Breakdown

Total Resources	50
Number of Hosts	10
Static Resources	24
JavaScript Resources	9
CSS Resources	6

Osa.org Typos

www.osa.com
www.osa.net
www.osa.org
www.osa.info
www.osa.biz
www.osa.us
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www.isa.org
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www.olsa.org
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www.psa.org
www.opsa.org
www.posa.org
www.oa.org
www.owa.org
www.oswa.org
www.owsa.org
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www.osea.org
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www.oda.org
www.osda.org
www.odsa.org
www.oza.org
www.osza.org
www.ozsa.org
www.oxa.org
www.osxa.org
www.oxsa.org
www.oaa.org
www.osaa.org
www.oasa.org
www.os.org
www.osq.org
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www.osqa.org
www.osw.org
www.osaw.org
www.oss.org
www.osas.org
www.ossa.org
www.osz.org
www.osaz.org

Osa.org Home | Optica

Optica is the leading society in optics and photonics. Quality information and inspiring interactions through publications, meetings, and membership.

Quick Summary

Osa.org General Information

Osa.org Alexa Rank History

Osa.org Safety Information

Osa.org Server Information

Osa.org Domain Name Information

Osa.org HTML Validation

Osa.org Desktop Insights

Osa.org Mobile Insights

Osa.org Nearest Competitors

Osa.org Typos