atlantisadventures.com

https://atlantisadventures.com· First analyzed 29 May 2026· Updated 29 May 2026

Export

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

63.176.8.218

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16509

Organization

AWS EC2 (eu-central-1)

Server

Netlify

Nameservers

dns1.p01.nsone.net.dns2.p01.nsone.net.dns3.p01.nsone.net.dns4.p01.nsone.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

876 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

5.2 MB

91 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

Infrastructure

Platform

Netlify

Technology Stack

7 Technologies Detected

Analytics

CSS Frameworks

Tag Managers

Advertising

Platforms

SEO Analysis

D57/100

Meta Tags14/15

Content8/12

Headings3/8

Technical11/21

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

atlantisadventures.comatlantisadventures.com

Atlantis Adventures | Submarine Tours in Hawaii

Explore Hawaii’s underwater world with Atlantis Adventures. Dive 100 feet below the surface in our state-of-the-art, Coast Guard-approved passenger submarines.

Title Length47 chars

Recommended: 50-60 chars (~281px / 580px)

Description Length159 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

Local SEO

Local Search Readiness

14/100

Poor

4 12 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D42/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

0/25

Citation

9/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

nav

Text ratio:8%

Words:592

Token eff.:Optimal

Sections/1K:20.3

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary68w

Descriptive Headingsavg 3w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

69/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

9/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

6/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•Accessibility recommendation preview...

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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

28/100

537 mg

CO₂e / view

5.2 MB

Page Weight

15%

Cleaner Than

New Visitor

614 mg

Returning (cached)

307 mg

Annual (10K/mo)

64.4 kg

Emission Segments

Data Center

26 mg

Network

158 mg

Device

353 mg

Resource Breakdown

JavaScript

271.1 KB

Images

1.5 MB

CSS

280.8 KB

HTML

1.5 KB

Other

3.1 MB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

No WAF

87d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

27.05.2026

Valid Until

25.08.2026

Subject Alternative Names (2)

*.atlantisadventures.comatlantisadventures.com

SHA-256 Fingerprint

98:52:2E:FD:C0:B6:9C:93:7F:6A:FB:46:CA:EF:45:55:31:4E:20:16...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

cache-control

🟡 0s(public,max-age=0,must-revalidate)

cache-status

"Netlify Edge"; fwd=miss

content-encoding

⚡ Brotli(br)

content-length

1279

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

alt4.aspmx.l.google.com

alt3.aspmx.l.google.com

alt2.aspmx.l.google.com

alt1.aspmx.l.google.com

+1 more

Domain Information

atlantisadventures.com

Domain Age

28 years

Created

28.05.1998

Expires

27.05.2027

Last Updated

11.05.2026

Registrar

Bluehost Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

68/100

Mobile Friendly1 breakpoint

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width,initial-scale=1

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Red Hat Display + -apple-system

WCAG Partial

59/100

Readability

/30

24/30

16px · LH 1.50

Hierarchy

/20

4/20

WCAG

/25

10/25

1:1 min contrast

Performance

/25

21/25

System fonts

Heading Font

Red Hat Display

Sans

Body Font

-apple-system

Sans16px

Contrast Ratio

1:1

33 issues

Reading Comfort

~37 CPL

Narrow lines

24px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 19/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 33 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

Buy on MyFontsFlesch 19

Color Palette

11 unique colors

13.74:1 AAA Light

#ffffff

Background· 27.7%

#2f2d29

Text· 12.5%

#000000

Primary· 0%

#0a446c

Accent· 11.1%

#6a5444

Secondary· 7.3%

#0f2b56

Accent· 5.6%

#0b1119

Secondary· 4.4%

#506975

Secondary· 4%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

TikTok PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(4)analytics.tiktok.com(3)connect.facebook.net(2)gstatic.com(2)local(2)

Website Identity

atlantisadventures.com

18003810237

28 years old

Location detected: 🇩🇪 Germanyvia ip

Bluehost Inc.📧 Google Workspaceen

Social Profiles

Facebook Instagram

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Last analyzed: 29 May 2026 at 12:51

Historical Analysis & Change Tracking