doublevault.us

https://doublevault.us· First analyzed 09 May 2026· Updated 09 May 2026

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doublevault.us

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.67.203.183

Site Location

🇺🇸 United Statesvia tld

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

elsa.ns.cloudflare.com.trace.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.4 s10%

Speed Index

1.8 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

854 KB

34 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

11 Technologies Detected

UI Components

Swiper Slick Carousel Owl Carousel Fancybox

Libraries

CSS Frameworks

Other

Analytics

CDN

SEO Analysis

C64/100

Meta Tags11/15

Content12/12

Headings3/8

Technical18/25

E-E-A-T3/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile3/4

Indexability3/3

doublevault.usdoublevault.us

DoubleVault Blog: Secure Tech Insights and Expert Cybersecurity Tips

Explore the DoubleVault blog for the latest in cybersecurity, tech trends, and secure practices. Get expert advice to protect your digital life and stay ahea...

Description truncated.

Title Length68 chars

Recommended: 50-60 chars (~404px / 580px)

Description Length170 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (24/35) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

49 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

6/100

Poor

2 13 2

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

Sponsored

AI & LLM Readiness

F32/100

Bot Access

3/25

Machine Read.

15/25

Schema Data

0/25

Citation

14/25

AI Bot Access

2/14 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:4%

Words:1,349

Token eff.:Optimal

Sections/1K:12.6

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary48w

Descriptive Headingsavg 11.5w

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

20/20

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

Semantic Structure

13/20

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

Forms & Inputs

10/15

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

11/15

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

ARIA & Roles

0/15

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

4 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.

53/100

86 mg

CO₂e / view

853.7 KB

Page Weight

80%

Cleaner Than

New Visitor

99 mg

Returning (cached)

49 mg

Annual (10K/mo)

10.3 kg

Emission Segments

Data Center

4 mg

Network

25 mg

Device

57 mg

Resource Breakdown

JavaScript

175.5 KB

Images

28.8 KB

CSS

627.8 KB

HTML

21.6 KB

Green Hosting Verified

Cloudflare

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

54%Poor

Interactive

HTTPS

WAF

63d

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+H3

Valid From

13.04.2026

Valid Until

12.07.2026

Subject Alternative Names (2)

*.doublevault.usdoublevault.us

SHA-256 Fingerprint

B4:29:B1:86:75:D5:CD:BF:20:F5:E5:E7:2A:4F:00:BD:2D:5F:AF:EF...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 1 Hours(public, max-age=3600)

cf-cache-status

MISS

cf-ray

9f8e5049efb93762-BOS

content-encoding

zstd

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

doublevault.us

DNSSEC

Not Enabled

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.

72/100

Mobile Friendly12 breakpoints

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

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Roboto

WCAG AA

68/100

Readability

/30

22/30

16px · LH 1.80

Hierarchy

/20

8/20

WCAG

/25

18/25

4.5:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Roboto

Sans

Body Font

Roboto

Sans16px

Contrast Ratio

4.5:1

WCAG AA (≥4.5:1)

Reading Comfort

~45 CPL

Narrow lines

45px

20px

17px

16px

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

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.5:1).

❌ 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).

✅ System fonts: Zero font loading delay — best possible LCP impact.

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

Color Palette

6 unique colors

Light

#ffffff

Background· 66%

#c2cbd2

Secondary· 14%

#88a9b7

Secondary· 3.2%

#dbe2e5

Secondary· 1.5%

#aad0a7

Secondary· 1%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)analytics.tech-vikings.com(1)static.cloudflareinsights.com(1)

Website Identity

doublevault.us

Location detected: 🇺🇸 United Statesvia tld

Sponsored

Last analyzed: 09 May 2026 at 05:30

Historical Analysis & Change Tracking