Osa.org Home | Optica
Optica is the leading society in optics and photonics. Quality information and inspiring interactions through publications, meetings, and membership.
Server IP address resolved: Yes
Http response code: 200
Response time: 1.67 sec.
Last Checked: 02/07/2023
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 (May 02, 2024) osa.org has an invalid SSL certificate.
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.
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 |
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.
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 ConnectSafe evaluates osa.org for any unsafe and insecure content. The results are critical for families with young children.
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.
"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.
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.
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.
| WARNING! | Certificate download error. Previous scan results are shown below. |
| WARNING! | Osa.org is not secured by SSL certificate. |
ASN ID: 174
ASN Title: COGENT-174 - Cogent Communications, US
Last Update: 10/05/2023
#
# 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
Domain Name: OSA.ORG
Registry Domain ID: D588718-LROR
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://www.networksolutions.com
Updated Date: 2020-12-08T16:35:26Z
Creation Date: 1993-01-04T05:00:00Z
Registry Expiry Date: 2023-01-03T05:00:00Z
Registrar Registration Expiration Date:
Registrar: Network Solutions, LLC
Registrar IANA ID: 2
Registrar Abuse Contact Email: abuse@web.com
Registrar Abuse Contact Phone: +1.8003337680
Reseller:
Domain Status: ok https://icann.org/epp#ok
Registrant Organization: Optical Society of America
Registrant State/Province: DC
Registrant Country: US
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: 2021-05-06T06:45:09Z
| 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
Last tested: 12/01/2017
| Total Resources | 50 |
| Number of Hosts | 10 |
| Static Resources | 24 |
| JavaScript Resources | 9 |
| CSS Resources | 6 |
Last tested: 11/30/2017
| Total Resources | 50 |
| Number of Hosts | 10 |
| Static Resources | 24 |
| JavaScript Resources | 9 |
| CSS Resources | 6 |
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