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jvascsurg.org

https://jvascsurg.org· First analyzed 08 May 2026· Updated 08 May 2026
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jvascsurg.org
Desktop screenshot of jvascsurg.org
Mobile screenshot of jvascsurg.org
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

162.159.140.114

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns1.reedelsevier.com.ns3.reedelsevier.com.ns2.reedelsevier.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
398 ms10%
Speed Index
517 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
760 KB
84 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

5 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Advertising

1
Google Ads

CDN

1
Cloudflare

Customer Support

1
Zendesk

SEO Analysis

D57/100
14
10
3
Meta Tags7/15
Content10/12
Headings3/8
Technical18/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social1/5
Freshness0/4
Mobile3/4
Indexability3/3
J
jvascsurg.orgjvascsurg.org

Home Page: Journal of Vascular Surgery

No description available for this page.

Title Length38 chars

Recommended: 50-60 chars (~231px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • • Missing meta description — important for click-through rates in SERPs
  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (29/53) — critical for accessibility and SEO

13 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

70 rules

Sitemap reference found

Local SEO

Local Search Readiness

9/100
Poor
3 13 2

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

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AI & LLM Readiness

F31/100
Bot Access
12/25
Machine Read.
7/25
Schema Data
3/25
Citation
9/25

AI Bot Access

5/14 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.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:6%
Words:2,397
Token eff.:Optimal
Sections/1K:0.8

Structured Data

1 JSON-LD
WebSiteSearchAction

Citation Readiness

Opening Summary170w
Descriptive Headingsavg 2.4w
Canonical URL
Open Graph0/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
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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.
A
86/100
15
Passed
1
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
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
15/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
69/100
A
77 mg
CO₂e / view
759.6 KB
Page Weight
80%
Cleaner Than
New Visitor
88 mg
vs
Returning (cached)
44 mg
Annual (10K/mo)
9.2 kg
Emission Segments
Data Center
4 mg
Network
23 mg
Device
50 mg
Resource Breakdown
JavaScript
304.7 KB
CSS
332.1 KB
Fonts
41.9 KB
HTML
56.8 KB
Other
24.1 KB
Green Hosting Verified
Cloudflare
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

25%Critical
Critical / Transactional

HTTPS

WAF

46d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

26.03.2026

Valid Until

24.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.jvascsurg.org

SHA-256 Fingerprint

47:85:B3:84:A9:13:1E:87:3B:7D:CC:B5:E2:F9:B2:06:6A:E8:4B:45...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🔴 No Cache(no-cache)
cf-cache-status
DYNAMIC
cf-ray🇮🇹 Milan
9f8ae7d21c67f615-MXP
content-encoding
⚡ Brotli(br)
content-security-policy-report-only
script-src data: https: 'unsafe-inline' 'unsafe-eval' 'stric...
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

jvascsurg.org

Domain Age
20y 5m

Created

17.11.2005

Expires

17.11.2027

Last Updated

23.09.2024

Registrar

Network Solutions, LLC

DNSSEC
Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner
OneTrust
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: OneTrust
Privacy policy page linked

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.
B
70/100
Mobile Friendly27 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...
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Typography & Readability

Elsevier Sans

WCAG Partial
77/100
Readability
/30
26/30

16px · LH 1.40

Hierarchy
/20
16/20

2x ratio · ✓ H1→H6

WCAG
/25
19/25

1:1 min contrast

Performance
/25
16/25

1 font · 14 req

Heading Font

Elsevier Sans

Sans32px

Body Font

Elsevier Sans

Sans16px

Contrast Ratio

1:1

1 issue

Reading Comfort

~40 CPL

Narrow lines
32px
h1
26px
h2
22px
h3
18px
h4
16px
p

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

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 23/100. Consider shorter sentences and simpler words.

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

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

GGoogle FontsBuy on MyFontsFlesch 23

Color Palette

5 unique colors
Light
#ffffff
Background· 54.699999999999996%
#b2202a
Primary· 9.7%
#b8c5cb
Border· 6.4%
#a35b64
Secondary· 1.3%

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
OneTrustEnterprise

Cookie consent and privacy compliance tools

2

Categories

2

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

Ad Networks

Google Ad ManagerPrebid.js

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Scripts & Styles

26 Resources

20
Scripts
6
Styles
3
Async
2
Defer

Top Script Sources

jvascsurg.org(9)local(3)securepubads.g.doubleclick.net(2)static.cloudflareinsights.com(2)bam.nr-data.net(1)

Website Identity

jvascsurg.org

jvascsurg@vascularsociety.org
20 years old
Location detected: 🇨🇦 Canadavia ip
Network Solutions, LLCen

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Last analyzed: 08 May 2026 at 19:36

Historical Analysis & Change Tracking