sigarch.org

https://sigarch.org· First analyzed 30 May 2026· Updated 30 May 2026

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sigarch.org

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Hosting Provider

DigitalOcean

digitalocean.com

IP Address

137.184.36.9

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Santa Clara, United States

ASN

AS14061

Organization

Digital Ocean

Server

Apache

Nameservers

ns14.dnsmadeeasy.com.ns13.dnsmadeeasy.com.ns10.dnsmadeeasy.com.ns12.dnsmadeeasy.com.+2 more

Performance

Core Web Vitals

Weight

First Contentful Paint

1.7 s10%

Speed Index

2.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

11.9 MB

105 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Diviv4.27.6Custom

by Elegant Themes

View Theme

Technology Stack

28 Technologies Detected

Plugins

Widget Logic Wp Views Cforms2

Contact Form 7

Honeypot Recent Tweets Widget Wp Job Manager Wp Job Manager Resumes

Ultimate Addons For Contact Form 7

Mailin Cred Frontend Editor Say What Wp Statistics Google Site Kit

Libraries

CSS Frameworks

Analytics

Web Servers

Icon Libraries

Fonts

Tag Managers

Languages

SEO Analysis

D55/100

Meta Tags10/15

Content3/12

Headings3/8

Technical19/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile1/4

Indexability3/3

sigarch.orgsigarch.org

SIGARCH | The ACM Special Interest Group on Computer Architecture

The ACM Special Interest Group on Computer Architecture

Title Length65 chars

Recommended: 50-60 chars (~401px / 580px)

Description Length55 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (10 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

10 issues found

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Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

F30/100

Bot Access

20/25

Machine Read.

1/25

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.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:0%

Words:0

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

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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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.

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

13/20

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

4/15

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.

28/100

1.24 g

CO₂e / view

11.9 MB

Page Weight

Cleaner Than

New Visitor

1.41 g

Returning (cached)

706 mg

Annual (10K/mo)

148.3 kg

Emission Segments

Data Center

61 mg

Network

363 mg

Device

812 mg

Resource Breakdown

JavaScript

356.9 KB

Images

23.8 KB

CSS

11.5 MB

HTML

37.3 KB

Other

315 B

Green Hosting Verified

DigitalOcean

Provider Match

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

88d

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

29.05.2026

Valid Until

27.08.2026

Subject Alternative Names (1)

www.sigarch.org

SHA-256 Fingerprint

F3:88:33:EE:9E:A2:11:05:F5:6E:BC:C2:EC:03:BF:73:E0:12:51:53...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=2592000

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

37887

content-type

text/html; charset=UTF-8

date

Sat, 30 May 2026 15:15:16 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

sigarch.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

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

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.

71/100

Mobile Friendly56 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...

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Typography & Readability

Helvetica

WCAG Partial

54/100

Readability

/30

18/30

14px · LH 1.40

Hierarchy

/20

8/20

WCAG

/25

16/25

3.54:1 min contrast

Performance

/25

12/25

3 fonts · 22 req

Heading Font

Helvetica

Sans

Body Font

Helvetica

Sans14px

Contrast Ratio

3.54:1

12 issues

Reading Comfort

~41 CPL

Narrow lines

32px

18px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

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

❌ Very complex text: Flesch score 11/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 3.5:1).

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

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

Buy on MyFontsFluid Type (rem)Flesch 11

Color Palette

7 unique colors

19.9:1 AAA Light

#ffffff

Background· 46.89999999999999%

#09090a

Text· 4.6%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

sigarch.org(12)googletagmanager.com(3)cdn.by.wonderpush.com(2)google-analytics.com(1)use.fontawesome.com(1)

Website Identity

sigarch.org

27 years old

Location detected: 🇺🇸 United Statesvia ip

Network Solutions, LLCen-US

Social Profiles

LinkedIn YouTube

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Last analyzed: 30 May 2026 at 15:15

Historical Analysis & Change Tracking