Tdisdi.com Learn to Dive - International Training - SDI | TDI | ERDI | PFI

Learn to Dive! Scuba Diving International (SDI), Technical Diving International (TDI), Performance Freediving International (PFI), and ERDI.

Tdisdi.com Overview

out of 100 for mobile and 71 out of 100 for desktop

Technology used: WordPress CMS, PHP, Apache Web server, Google Analytics

TDISDI.com is a website that offers scuba diving-related courses and training programs for divers. The website is owned and operated by the Scuba Diving International (SDI), Technical Diving International (TDI), Emergency Response Diving International (ERDI), and Performance Freediving International (PFI). The site has a global Alexa rank of 502,301 and receives an average of 636 unique users per day, generating 3625.2 page views per day. The estimated value of the website is $65,700 US dollars.

The site's layout and design are very user-friendly, with clear and accessible menus and a sleek and professional design. The website's branding is consistent throughout, with the use of blue and white colors being prevalent. It's easy to navigate to the various sections of the site, and the educational materials are easy to find.

The website is hosted by Liquid Web, L.L.C, a US-based hosting company. This provider is known for its excellent uptime stats and fast speeds, which are essential for a website in the education industry, such as TDISDI.com.

The website's Top-Level Domain (TLD) is .COM, which is a widely recognizable and trusted TLD. The site's SSL is issued by GlobalSign nv-sa, an established certificate authority that provides reliable, secure encryption for the site's users.

The website is family-friendly, and all of its content is appropriate for all age groups. It provides valuable information and resources for anyone who is interested in scuba diving, whether they are novices or experts.

The website's PageSpeed Insights scores are 44 out of 100 for mobile and 71 out of 100 for desktop, indicating that some improvements could be made to optimize its speed. The website uses WordPress CMS, PHP, Apache Web server, and Google Analytics to manage its content and track its performance.

In conclusion, TDISDI.com is an excellent educational resource for anyone interested in scuba diving. The website's layout and design are very user-friendly, and the content is informative and engaging. Hosting provided by Liquid Web ensures that the site is always online and available to users, while the site's Top-Level Domain and SSL issued by GlobalSign make it a trusted and secure source of information for visitors. Although the site's PageSpeed

Tdisdi.com Rank Summary

Global Rank

175,994

Average Load Time

2.78sec

Links In Count

405

Website Value

$65,766

Audience Geography. Where are tdisdi.com visitors located?

Country	Visitors
United States US	48.8%
United Kingdom GB	7.8%
Philippines PH	3.6%
Other	39.6%

Country	Pageviews
United States US	66.8%
Philippines PH	10.1%
United Kingdom GB	3.5%
Other	19.5%

Country	Rank
Philippines PH	20641
United States US	76231
United Kingdom GB	102310

Where do visitors go on tdisdi.com?

Subdomain	Pageviews
tdisdi.com	100%

Subdomain	Pageviews per User
tdisdi.com	4

Subdomain	Reach
tdisdi.com	100%

How popular is tdisdi.com?

Period	Global Rank	Global Rank Delta
past 3 months	175994	16976
past month	235435	65958
past week	244236	74959
yesterday	340364	96218

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	125062	-6054	41	8%	5.7	30%
30	206651	77987	22	-47.456%	4	-22.27%
7	259575	137378	17	-58.98%	3	-49.393%
1	296859	96914	16	-29.04%	4	-9.131%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	213561	30406	27	-15.9%
30	267220	64990	2	-32.38%
7	262125	52012	22	-19.03%
1	400282	95778	2	-21.96%

Tdisdi.com Website Safety

Overview

Last Updated: 12/26/2024

Overall result - tdisdi.com 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: 03/25/2024

tdisdi.com is safe.

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

Google Safe Search

Last Updated: 03/01/2019

tdisdi.com 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

tdisdi.com 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: 02/25/2021

tdisdi.com is safe.

McAfee assesses tdisdi.com 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 tdisdi.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/10/2019

tdisdi.com child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	*.tdisdi.com
Issuer Organization	GlobalSign nv-sa
Issuer	GlobalSign GCC R3 DV TLS CA 2020
Algorithm	RSA-SHA256
Valid form	12/21/2021
Expiration	01/22/2023
Signed	Certificate is not self signed
Additional Domains	*.tdisdi.com tdisdi.com

Tdisdi.com Rank History

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

Tdisdi.com Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 32244

ASN Title: LIQUIDWEB - Liquid Web, L.L.C, US

Last Update: 07/31/2024

#
# 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: 32244
ASName: LIQUIDWEB
ASHandle: AS32244
RegDate: 2004-03-26
Updated: 2016-12-19
Ref: https://rdap.arin.net/registry/autnum/32244

OrgName: Liquid Web, L.L.C
OrgId: LQWB
Address: 4210 Creyts Rd.
City: Lansing
StateProv: MI
PostalCode: 48917
Country: US
RegDate: 2001-07-19
Updated: 2016-10-21
Ref: https://rdap.arin.net/registry/entity/LQWB

ReferralServer: rwhois://rwhois.liquidweb.com:4321

OrgAbuseHandle: ABUSE551-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-800-580-4985
OrgAbuseEmail: abuse@liquidweb.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE551-ARIN

OrgTechHandle: IPADM47-ARIN
OrgTechName: IP Administrator
OrgTechPhone: +1-800-580-4985
OrgTechEmail: ipadmin@liquidweb.com
OrgTechRef: https://rdap.arin.net/registry/entity/IPADM47-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-1.5:003eef:00 rwhois.z.int.liquidweb.com (by Network Solutions, Inc. V-1.5.9.5)
%error 230 No Objects Found

Tdisdi.com Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: TDISDI.COM
Registry Domain ID: 3293060_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.domain.com
Registrar URL: http://www.domain.com
Updated Date: 2021-01-20T18:12:15Z
Creation Date: 1999-01-28T05:00:00Z
Registry Expiry Date: 2029-01-28T05:00:00Z
Registrar: Domain.com, LLC
Registrar IANA ID: 886
Registrar Abuse Contact Email: compliance@domain-inc.net
Registrar Abuse Contact Phone: 602-226-2389
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: NS-CLOUD-C1.GOOGLEDOMAINS.COM
Name Server: NS-CLOUD-C2.GOOGLEDOMAINS.COM
Name Server: NS-CLOUD-C3.GOOGLEDOMAINS.COM
Name Server: NS-CLOUD-C4.GOOGLEDOMAINS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-10-18T22:41:39Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Tdisdi.com HTML Check

HTML Validation Tool

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

Errors

Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.

Bad value “website” for attribute “itemtype” on element “meta”: The string “website” is not an absolute URL.

Element “meta” is missing one or more of the following attributes: “content”, “itemprop”, “name”.

Bad start tag in “img” in “head”.

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

Stray end tag “noscript”.

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

Stray end tag “head”.

Start tag “body” seen but an element of the same type was already open.

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

Tdisdi.com Desktop Performance

Last tested: 12/04/2018

Desktop Speed

57%

Optimize images

Leverage browser caching

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

Reduce server response time

Minify JavaScript

Prioritize visible content

Minify CSS

Desktop Resource Breakdown

Total Resources	79
Number of Hosts	19
Static Resources	53
JavaScript Resources	35
CSS Resources	16

Tdisdi.com Mobile Insights

Last tested: 12/04/2018

Mobile Usability

88%

Size tap targets appropriately

Mobile Speed

44%

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

Optimize images

Leverage browser caching

Reduce server response time

Prioritize visible content

Minify JavaScript

Minify CSS

Mobile Resource Breakdown

Total Resources	79
Number of Hosts	19
Static Resources	53
JavaScript Resources	35
CSS Resources	16

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Tdisdi.com Learn to Dive - International Training - SDI | TDI | ERDI | PFI

Learn to Dive! Scuba Diving International (SDI), Technical Diving International (TDI), Performance Freediving International (PFI), and ERDI.

Tdisdi.com Overview

Tdisdi.com Rank Summary

Tdisdi.com Website Safety

Tdisdi.com Rank History

Tdisdi.com Hosting Information

Tdisdi.com Domain Registration and Settings

Tdisdi.com HTML Check

Tdisdi.com Desktop Performance

Tdisdi.com Mobile Insights

Tdisdi.com Similar Audits

Tdisdi.com Common Typos