Undercurrent.org Scuba Diving Magazine, Undercurrent Reviews Liveaboards, Dive Resorts & Dive Gear

Since 1975, Undercurrent, 'the Consumer Reports of diving' by Business Week, provides authoritative, unbiased reviews of liveaboards, dive resorts, ...

Undercurrent.org Overview

Undercurrent.org ranking shows that the page is at position 2,455,921 over the world, while the bulk of its audience is from United States, where it ranks 727,734.

In terms of rank-to-traffic ratio, undercurrent.org has 301 unique users per day, viewing 304 pages. The rank based value of undercurrent.org is 3,154 USD. Every user makes 1.08 pageviews on average.

Undercurrent.org boasts a link base consisting of 436 referring domains and 514 external backlinks, as revealed by the data obtained from web network scanning.

Undercurrent.org top-level domain belongs to .ORG domain zone. Check other webpages in .ORG zone.

According the last verification test in September 06, 2023, undercurrent.org has an expired wildcard SSL certificate issued by Let's Encrypt (expired on October 09, 2023). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by Let's Encrypt.

Based on data from Google Safe Browsing, Google Safe Search, Symantec and Web of Trust undercurrent.org is a fairly safe domain.

According the Mobile-Friendly test by Google undercurrent.org is nice optimized for mobile devices and tablets.

Undercurrent.org Rank Summary

Global Rank

2,455,921

Average Load Time

1.11sec

Links In Count

132

Website Value

$2,920

Audience Geography. Where are undercurrent.org visitors located?

Country	Visitors
United States US	51.4%
Other	50%

Country	Pageviews
United States US	52.2%
Other	47.8%

Country	Rank
United States US	727734

Where do visitors go on undercurrent.org?

Subdomain	Pageviews
undercurrent.org	100%

Subdomain	Pageviews per User
undercurrent.org	1

Subdomain	Reach
undercurrent.org	100%

How popular is undercurrent.org?

Period	Global Rank	Global Rank Delta
past 3 months	2455921	1305359
past month	2069596	-2489800
past week	2084952	-1735379

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	3344847	1781462	0	-68.269%	1	-16.2%
30	2702390	-3008446	1	300%	1	30%
7	2404342	-1717730	1	200%	1	50%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	2141554	1112202	14	-61.644%
30	1897570	-2095810	2	200%
7	2008503	-1581268	2	100%

Undercurrent.org Website Safety

Overview

Last Updated: 01/09/2026

Overall result - undercurrent.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: 04/01/2025

undercurrent.org is safe.

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

Google Safe Search

Last Updated: 01/03/2017

undercurrent.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

undercurrent.org 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: 03/02/2021

undercurrent.org is safe.

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

Web of Trust

Last Updated: 01/11/2019

undercurrent.org child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	*.undercurrent.org
Issuer Organization	Let's Encrypt
Issuer	R3
Algorithm	RSA-SHA256
Valid form	07/11/2023
Expiration	10/09/2023
Signed	Certificate is not self signed
Additional Domains	*.undercurrent.org undercurrent.org

Undercurrent.org Rank History

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

Undercurrent.org Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 19122

ASN Title: ESTRUXTURE-ON-19122, CA

Last Update: 12/26/2025

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2023, American Registry for Internet Numbers, Ltd.
#

ASNumber: 19122
ASName: ESTRUXTURE-ON-19122
ASHandle: AS19122
RegDate: 2007-08-07
Updated: 2023-08-30
Ref: https://rdap.arin.net/registry/autnum/19122

OrgName: eStruxture Data Centers Inc.
OrgId: EDC-83
Address: 800 Square Victoria, SS1-060
Address: C.P. 118
City: Montreal
StateProv: QC
PostalCode: H4Z 1B7
Country: CA
RegDate: 2017-10-05
Updated: 2022-05-25
Ref: https://rdap.arin.net/registry/entity/EDC-83

ReferralServer: rwhois://rwhois.estruxture.net:4321

OrgTechHandle: ESTRU1-ARIN
OrgTechName: eStruxture Ops
OrgTechPhone: +1-514-369-2209
OrgTechEmail: ops@estruxture.com
OrgTechRef: https://rdap.arin.net/registry/entity/ESTRU1-ARIN

OrgAbuseHandle: ESTRU2-ARIN
OrgAbuseName: eStruxture Abuse
OrgAbusePhone: +1-514-369-2209
OrgAbuseEmail: abuse@estruxture.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ESTRU2-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2023, American Registry for Internet Numbers, Ltd.
#

%rwhois V-1.5:003eff:00 rwhois.estruxture.net (by Network Solutions, Inc. V-1.5.9.5)
%error 230 No Objects Found

Undercurrent.org Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: undercurrent.org
Registry Domain ID: a307c0dba17a4080b58e0c2b16936f50-LROR
Registrar WHOIS Server: whois.squarespace.domains
Registrar URL: https://domains.squarespace.com
Updated Date: 2024-10-19T22:34:53Z
Creation Date: 1998-03-24T05:00:00Z
Registry Expiry Date: 2025-03-23T05:00:00Z
Registrar: Squarespace Domains II LLC
Registrar IANA ID: 895
Registrar Abuse Contact Email: abuse-complaints@squarespace.com
Registrar Abuse Contact Phone: +1.6466935324
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization:
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: Bali
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: ID
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: ns.scuba-divers.org
Name Server: ns2.scuba-divers.org
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-10-25T06:07:47Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Undercurrent.org HTML Check

HTML Validation Tool

Errors

Attribute “xmlns:og” not allowed here.

Attribute “xmlns:fb” not allowed here.

Internal encoding declaration “iso-8859-1” disagrees with the actual encoding of the document (“utf-8”).

Bad value “iso-8859-1” for attribute “charset” on element “meta”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.

Bad value “///favicon.ico” for attribute “href” on element “link”: Unexpected slash or backslash.

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

The “hspace” attribute on the “img” element is obsolete. Use CSS instead.

The “vspace” attribute on the “img” element is obsolete. Use CSS instead.

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

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

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

No space between attributes.

Character reference was not terminated by a semicolon.

A numeric character reference expanded to the C1 controls range.

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

Attribute “background” not allowed on element “td” at this point.

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

Duplicate ID “navbar”.

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

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

The “clear” attribute on the “br” element is obsolete. Use CSS instead.

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

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

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

The “font” element is obsolete. Use CSS instead.

The “bgcolor” attribute on the “tr” element is obsolete. Use CSS instead.

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

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

The “size” attribute on the “hr” element is obsolete. Use CSS instead.

Malformed byte sequence: “92”.

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

Unclosed element “a”.

End tag “a” violates nesting rules.

Cannot recover after last error. Any further errors will be ignored.

Warnings

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

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

Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

The first occurrence of ID “navbar” was here.

The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.

Undercurrent.org Desktop Performance

Last tested: 09/06/2015

Desktop Speed

80%

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

Leverage browser caching

Enable compression

Optimize images

Minify JavaScript

Minify HTML

Minify CSS

Desktop Resource Breakdown

Total Resources	89
Number of Hosts	26
Static Resources	68
JavaScript Resources	33
CSS Resources	7

Undercurrent.org Mobile Insights

Last tested: 06/20/2019

Mobile Usability

89%

Size tap targets appropriately

Mobile Speed

64%

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

Leverage browser caching

Optimize images

Minify HTML

Minify CSS

Mobile Resource Breakdown

Total Resources	51
Number of Hosts	15
Static Resources	42
JavaScript Resources	13
CSS Resources	6

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Undercurrent.org Scuba Diving Magazine, Undercurrent Reviews Liveaboards, Dive Resorts & Dive Gear

Since 1975, Undercurrent, 'the Consumer Reports of diving' by Business Week, provides authoritative, unbiased reviews of liveaboards, dive resorts, ...

Undercurrent.org Overview

Undercurrent.org Rank Summary

Undercurrent.org Website Safety

Undercurrent.org Rank History

Undercurrent.org Hosting Information

Undercurrent.org Domain Registration and Settings

Undercurrent.org HTML Check

Undercurrent.org Desktop Performance

Undercurrent.org Mobile Insights

Undercurrent.org Similar Audits

Undercurrent.org Common Typos