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bi-level.org

https://bi-level.org· First analyzed 11 May 2026· Updated 11 May 2026
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bi-level.org
Desktop screenshot of bi-level.org
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Mobile

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Hosting Provider

DigitalOcean
digitalocean.com

IP Address

142.93.13.103

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 North Bergen, United States

ASN

AS14061

Organization

Digital Ocean

Server

Apache

Nameservers

ns2.digitalocean.com.ns1.digitalocean.com.ns3.digitalocean.com.

Performance

96

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
861 KB
46 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
Page of Bilevel Optimizationv1.0Custom
by Jesus Mejia

Technology Stack

8 Technologies Detected

Libraries

2
jQueryv3.7.1
jQuery UI

Plugins

2
Easy Social IconsLatex2Html

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Web Servers

1
Apachev2.4.41

SEO Analysis

C68/100
19
7
1
Meta Tags7/15
Content11/12
Headings3/8
Technical23/25
E-E-A-T2/7
Images3/7
Links2/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
B
bi-level.orgbi-level.org

Resources on Evolutionary Bilevel Optimization | Bilevel Optimizati...

Bilevel optimization problems are hierarchical optimization tasks where an upper-level authority optimizes their goals restricted to optimal decisions/soluti...

Title truncated. Description truncated.
Title Length76 chars

Recommended: 50-60 chars (~447px / 580px)

Description Length299 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (76 chars, ~447px). Will be truncated in search results.

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

4 URLs

4 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

14/100
Poor
4 13

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

Sponsored

AI & LLM Readiness

D53/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
8/25
Citation
14/25

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.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
navheader/footer
Text ratio:8%
Words:621
Token eff.:Optimal
Sections/1K:6.4
Depth:2/5

Structured Data

7 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction
sameAs entity links

Citation Readiness

Opening Summary30w
Descriptive Headingsavg 5.8w
Canonical URL
Open Graph2/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
AI readiness recommendation preview...
Upgrade to view recommendations

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.
B
70/100
9
Passed
5
Critical
1
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
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
4/15
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.
63/100
B
87 mg
CO₂e / view
860.9 KB
Page Weight
80%
Cleaner Than
New Visitor
99 mg
vs
Returning (cached)
50 mg
Annual (10K/mo)
10.4 kg
Emission Segments
Data Center
4 mg
Network
26 mg
Device
57 mg
Resource Breakdown
JavaScript
65.6 KB
Images
612.3 KB
CSS
169.4 KB
Fonts
2.1 KB
HTML
11.4 KB
Green Hosting Verified
DigitalOcean
Provider Match
3 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

21%Critical
Interactive

HTTPS

No WAF

51d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

02.04.2026

Valid Until

01.07.2026

Subject Alternative Names (2)

bi-level.orgwww.bi-level.org

SHA-256 Fingerprint

D5:EA:B4:85:A3:38:97:E8:8D:63:C7:FD:EE:0D:C3:21:CE:27:4D:D2...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-length
11375
content-type
text/html; charset=UTF-8
date
Mon, 11 May 2026 04:54:10 GMT
keep-alive
timeout=5, max=100
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

bi-level.org

Domain Age
7y 9m

Created

15.08.2018

Expires

15.08.2026

Last Updated

24.07.2025

Registrar

HOSTINGER operations, UAB

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

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
74/100
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=1.0
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Lora

WCAG Partial
53/100
Readability
/30
12/30

13px · LH 1.70

Hierarchy
/20
15/20

2.4x ratio

WCAG
/25
17/25

1:1 min contrast

Performance
/25
9/25

3 fonts · 2 req

Heading Font

Lora

Serif32px

Body Font

Lora

Serif13px

Contrast Ratio

1:1

14 issues

Reading Comfort

~39 CPL

Narrow lines
32px
h1
16px
h3
32px
h4
13px
p
Major Third
Scale

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 14 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.4x larger than body text.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

GGoogle FontsFluid Type (rem)Flesch 0

Color Palette

4 unique colors
3.41:1 AA Large Light
#ffffff
Background· 66.60000000000001%
#8b8b8b
Other· 4.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

18 Resources

8
Scripts
10
Styles
0
Async
0
Defer

Top Script Sources

bi-level.org(8)

Website Identity

Bilevel Optimization Portal

Bilevel Optimization Portal

Organization

Resources on Evolutionary Bilevel Optimization

bi-level.org/
7 years old
Location detected: 🇺🇸 United Statesvia ip
HOSTINGER operations, UABen-US

Social Profiles

YouTubeGitHub

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Last analyzed: 11 May 2026 at 04:54

Historical Analysis & Change Tracking