Osa-opn.org Optics & Photonics News - Home

Osa-opn.org Quick Summary

Status

Offline

Server IP address resolved: No

Http response code: None

Last Checked: 09/30/2024

Osa-opn.org traffic estimate is about 351 unique visitors and 702 pageviews per day. The approximated value of osa-opn.org is 5,840 USD. Every unique visitor makes about 2 pageviews on average.

Alexa Traffic Rank estimates that osa-opn.org is ranked number 42,288 in the world.

Osa-opn.org server is located in United States, but, unfortunately, we cannot identify the countries where the visitors come from and thus it’s impossible to define if the distance can potentially affect the page load time. See the list of other websites hosted by UUNET - MCI Communications Services, Inc. d/b/a Verizon Business, US.

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

During the last check (August 01, 2024) osa-opn.org has an expired SSL certificate issued by DigiCert Inc (expired on July 19, 2023), please click the “Refresh” button for SSL Information at the Safety Information section. Check other websites using SSL certificates issued by DigiCert Inc.

In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust osa-opn.org is pretty a safe domain.

Relying on Google Mobile-Friendly test osa-opn.org is well optimized for mobile and tablet devices, however website page loading time may be improved.

Osa-opn.org General Information

Osa-opn.org Audience Geography

Where are website visitors coming from?

Visitors
Pageviews
Ranks

Country	Visitors

Osa-opn.org Traffic Distribution

Where do visitors go on osa-opn.org?

Subdomain Traffic
Views per User
Subdomain Reach

Subdomain	Pageviews

Osa-opn.org Popularity

How popular is osa-opn.org?

Global Rank
Pageviews
Reach

Period	Global Rank	Global Rank Delta
past 3 months	963762	344442
past month	1454591	623713
past week	990107	0

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	1203235	263149	2	-36.79%	2	40%
30	1504552	595626	1	-52.034%	2	-3.37%
7	839938	0	3	0%	3	0%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	903788	387578	43	-55%
30	1494926	625549	3	-50.222%
7	1066267	0	4	0%

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Osa-opn.org Safety Information

Rankchart Summary

Safe

Updated: 09/30/2024

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: 03/29/2024

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

Google Safe Search

Safe

Updated: 12/01/2016

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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

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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: 02/27/2021

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

Web of Trust

Child safety is very good

Updated: 01/10/2019

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

Osa-opn.org SSL Information

Information about SSL/TLS certificates

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Domain	www.optica-opn.org
Issuer Organization	DigiCert Inc
Issuer	DigiCert TLS RSA SHA256 2020 CA1
Algorithm	RSA-SHA256
Valid form	07/19/2022
Expiration	07/19/2023
Signed	Certificate is not self signed
Additional Domains	www.optica-opn.org optica-opn.org www.osa-opn.org

SSL Checker

Osa-opn.org Server Information

Osa-opn.org Server Location

Where website hosting server is located?

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Osa-opn.org ASN Information

Information about IP address owner

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ASN ID: 701

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

Updated: 02/29/2024

Raw ASN data:

Geolocation

ASN Lookup

Osa-opn.org Domain Name Information

Osa-opn.org DNS Information

Domain name service records

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A
NS
SOA

Host	A Record	TTL
osa-opn.org	65.202.222.221	14400

Host	NS Record	TTL
osa-opn.org	yogi2.osa.org	14400
osa-opn.org	yogi.osa.org	14400

Osa-opn.org Whois Information

Information about registered users or assignees of an Internet resource

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Raw WHOIS data:

Whois

DNS Lookup

Osa-opn.org HTML Validation

Osa-opn.org W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:

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

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

Bad value “content-style-type” for attribute “http-equiv” on element “meta”.

Bad value “content-script-type” for attribute “http-equiv” on element “meta”.

Bad value “https://fonts.googleapis.com/css?family=Open+Sans:400,500,600,600italic|Noto+Sans:400,700,400italic,700italic|Noto+Serif:400,400italic,700,700italic&subset=latin,greek-ext” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.

Bad value for attribute “srcset” on element “img”: No width specified for image “/opn/media/images/siteima…logo-white.svg?width=1200”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)

Bad value for attribute “srcset” on element “img”: No width specified for image “/opn/media/images/siteima…sa-logo-sm.png?width=1200”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)

Bad value for attribute “srcset” on element “img”: No width specified for image “/opn/media/images/siteima…logo-black.svg?width=1200”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)

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

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

Bad value for attribute “srcset” on element “img”: No width specified for image “/opn/media/Images/Homepag…n.jpg?ext=.jpg&width=1200”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)

Bad value for attribute “srcset” on element “img”: No width specified for image “/opn/media/Images/Career/…2.jpg?ext=.jpg&width=1200”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)

Bad value for attribute “srcset” on element “img”: No width specified for image “/opn/media/Images/Homepag…8.jpg?ext=.jpg&width=1200”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)

Bad value for attribute “srcset” on element “img”: No width specified for image “/opn/media/Images/Homepag…t.jpg?ext=.jpg&width=1200”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)

Bad value for attribute “srcset” on element “img”: No width specified for image “/opn/media/Images/siteima…laceholder.jpg?width=1200”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)

Bad value for attribute “srcset” on element “img”: No width specified for image “/opn/media/Images/Career/…n.jpg?ext=.jpg&width=1200”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)

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

Unclosed element “small”.

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

Bad value for attribute “srcset” on element “img”: No width specified for image “/opn/media/Images/siteima…o-white-sm.png?width=1200”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)

Bad value for attribute “srcset” on element “img”: No width specified for image “/opn/media/Images/siteima…o-white-xs.png?width=1200”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)

Warnings:

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

HTML Validator

Osa-opn.org Desktop Performance

How Well Osa-opn.org Performs On Desktops?

Website desktop performance and usability tips

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Speed
Resource Breakdown

Speed

54%

Optimize images

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

Leverage browser caching

Reduce server response time

Avoid landing page redirects

Minify JavaScript

Minify CSS

Minify HTML

Updated: 10/21/2015

Osa-opn.org Mobile Performance

How Optimized Is Osa-opn.org for Mobile Devices?

Tips on speeding up mobile site performance

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Usability
Speed
Resource Breakdown

Usability

99%

Size tap targets appropriately

Updated: 08/17/2019

Osa-opn.org Nearest Competitors

Estimated Nearest Competitors Of Osa-opn.org

wellbeing.google
mississaugachinese.net
lemonsport.sk
ifi-audio.com
oldbyre.com
optomausa.com
soccer24.com
draperinc.com
yuncheng.gov.cn
elms.edu
osa-opn.org
promopult.ru
agorafinancial.com
decades.com
glasurit.com
hamiltongardens.co.nz
g*****m.ru
clevelandbay.com
tumult.com
fastnedcharging.com
usbirthcertificates.com
marlboro.edu

Osa-opn.org URL Typos

Most common user URL mistypes for osa-opn.org

www.osa-opn.com
www.osa-opn.net
www.osa-opn.org
www.osa-opn.info
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www.osa-opn.us
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www.sa-opn.org
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www.isa-opn.org
www.oisa-opn.org
www.iosa-opn.org
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www.lsa-opn.org
www.olsa-opn.org
www.losa-opn.org
www.psa-opn.org
www.opsa-opn.org
www.posa-opn.org
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www.owa-opn.org
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www.oea-opn.org
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www.oesa-opn.org
www.oda-opn.org
www.osda-opn.org
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www.oza-opn.org
www.osza-opn.org
www.ozsa-opn.org
www.oxa-opn.org
www.osxa-opn.org
www.oxsa-opn.org
www.oaa-opn.org
www.osaa-opn.org
www.oasa-opn.org
www.os-opn.org
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www.osa-kopn.org
www.osa-lpn.org
www.osa-olpn.org
www.osa-lopn.org
www.osa-ppn.org
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www.osa-opm.org
www.osa-opnm.org
www.osa-opmn.org

Total Resources	114
Number of Hosts	16
Static Resources	71
JavaScript Resources	19
CSS Resources	8

CSS	97.8 KBytes
Images	1.3 MBytes
HTML	99.2 KBytes
JavaScript	969.8 KBytes
Other	202.4 KBytes

Total Resources	106
Number of Hosts	19
Static Resources	48
JavaScript Resources	19
CSS Resources	8

Text	72.5 KBytes
CSS	283.1 KBytes
Images	2.1 MBytes
HTML	76.3 KBytes
JavaScript	1.3 MBytes
Other	289.1 KBytes