sigmobile.org

https://sigmobile.org· First analyzed 17 May 2026· Updated 17 May 2026

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sigmobile.org

Mobile

Sponsored

Hosting Provider

A2 Hosting, Inc.

IP Address

190.92.158.4

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Detroit, United States

ASN

AS55293

Organization

A2 Hosting, Inc.

Server

LiteSpeed

Nameservers

ns12.dnsmadeeasy.com.ns13.dnsmadeeasy.com.ns15.dnsmadeeasy.com.ns14.dnsmadeeasy.com.+2 more

Performance

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%

7.9 MB

45 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Grav

Technology Stack

7 Technologies Detected

CSS Frameworks

Libraries

Icon Libraries

Fonts

Web Servers

Customer Support

SEO Analysis

D51/100

Meta Tags5/15

Content9/12

Headings3/8

Technical15/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

sigmobile.orgsigmobile.org

SIGMOBILE

Grav is an easy to use, yet powerful, open source flat-file CMS

Title Length9 chars

Recommended: 50-60 chars (~59px / 580px)

Description Length63 chars

Recommended: 120-160 chars

Issues (1)

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

11 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

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

D40/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

10/25

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

nav

Text ratio:3%

Words:403

Token eff.:Optimal

Sections/1K:9.9

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary27w

Descriptive Headingsavg 2.5w

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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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.

78/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

11/20

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

11/15

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.

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.

30/100

813 mg

CO₂e / view

7.9 MB

Page Weight

Cleaner Than

New Visitor

930 mg

Returning (cached)

465 mg

Annual (10K/mo)

97.6 kg

Emission Segments

Data Center

40 mg

Network

239 mg

Device

535 mg

Resource Breakdown

JavaScript

78.8 KB

Images

7.2 MB

CSS

564.8 KB

Fonts

1.8 KB

HTML

11.9 KB

Green Hosting Verified

A2 Hosting, Inc.

Provider Match

6 recommendations

•Carbon footprint recommendation preview...

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A+

Security Score

91%Excellent

Static / Informational

HTTPS

No WAF

72d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2+H3

Valid From

29.04.2026

Valid Until

28.07.2026

Subject Alternative Names (5)

*.sigmobile.hosting.acm.orgmail.sigmobile.orgsigmobile.hosting.acm.orgsigmobile.orgwww.sigmobile.org

SHA-256 Fingerprint

AC:49:77:FB:E8:D5:6F:52:60:90:A9:2F:3D:0F:69:2F:6A:79:A2:24...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

alt-svc

h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":4...

content-encoding

⚡ Brotli(br)

content-length

191

content-type

text/html

date

Sun, 17 May 2026 00:55:07 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

sigmobile.org

Domain Information

sigmobile.org

Domain Age

27y 3m

Created

18.02.1999

Expires

18.02.2031

Last Updated

25.12.2025

Registrar

Network Solutions, LLC

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.

67/100

Mobile Friendly10 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=1.0

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial

65/100

Readability

/30

22/30

16px · LH 1.62

Hierarchy

/20

8/20

WCAG

/25

16/25

1.06:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

-apple-system

Sans

Body Font

-apple-system

Sans16px

Contrast Ratio

1.06:1

1 issue

Reading Comfort

~41 CPL

Narrow lines

27px

16px

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

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

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.1:1).

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

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

GGoogle FontsFlesch 0

Color Palette

10 unique colors

6.79:1 AA Light

#ffffff

Background· 60.8%

#545c64

Secondary· 4.1%

#17375c

Primary· 8.8%

#967c61

Secondary· 6.2%

#2c303b

Secondary· 3.6%

#c1ae95

Secondary· 3.2%

#e7e2d7

Secondary· 2.4%

#102844

Accent· 0.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)cdnjs.cloudflare.com(2)

Website Identity

sigmobile.org

27 years old

Location detected: 🇺🇸 United Statesvia ip

Network Solutions, LLCen

Social Profiles

Facebook YouTube

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Last analyzed: 17 May 2026 at 00:55

Historical Analysis & Change Tracking