nirs.org

https://nirs.org· First analyzed 09 May 2026· Updated 09 May 2026

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nirs.org

Mobile

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Hosting Provider

Vultr

vultr.com

IP Address

45.76.31.47

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Elk Grove Village, United States

ASN

AS20473

Organization

Vultr Holdings, LLC

Server

Apache

CDN

Cloudflare

WAF

Cloudflare

Nameservers

rafe.ns.cloudflare.com.george.ns.cloudflare.com.

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%

5.4 MB

72 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

NIRSv1.0.6Custom

by Four Nine Design

View Theme

Technology Stack

17 Technologies Detected

Plugins

Table Sorter Ultimate Social Media Icons Nirs Wpaudio Mp3 Player

Yoast SEO

Analytics

Google Analytics

Facebook Pixel Segment

Libraries

Other

CSS Frameworks

Icon Libraries

Fonts

Social

Web Servers

Customer Support

SEO Analysis

A80/100

Meta Tags9/15

Content11/12

Headings6/8

Technical24/25

E-E-A-T5/7

Images1/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile3/4

Indexability3/3

nirs.orgnirs.org

Home · NIRS

The Nuclear Information and Resource Service fights for a nuclear-free, carbon-free world powered by clean, renewable energy.

Title Length11 chars

Recommended: 50-60 chars (~68px / 580px)

Description Length125 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (16/31) — critical for accessibility and SEO

7 issues found

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Crawlability

Sitemap

Type: index

14 URLs

14 sub-sitemaps

robots.txt

8 rules

Local SEO

Local Search Readiness

26/100

Needs Work

8 10

Sponsored

AI & LLM Readiness

C61/100

Bot Access

20/25

Machine Read.

14/25

Schema Data

8/25

Citation

19/25

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

def. listsnavheader/footer

Text ratio:8%

Words:1,042

Token eff.:Optimal

Sections/1K:4.8

Depth:3/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary55w

Descriptive Headingsavg 8.4w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (6)

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.

61/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

18/20

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

Forms & Inputs

7/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

14/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

9/15

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

ARIA & Roles

3/15

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.

11/100

688 mg

CO₂e / view

5.4 MB

Page Weight

Cleaner Than

New Visitor

786 mg

Returning (cached)

393 mg

Annual (10K/mo)

82.5 kg

Emission Segments

Data Center

154 mg

Network

165 mg

Device

369 mg

Resource Breakdown

JavaScript

273.3 KB

Images

5.0 MB

CSS

167.9 KB

Fonts

1.2 KB

HTML

18.9 KB

Green Hosting Not Verified

Vultr

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

82d

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/2

Valid From

02.05.2026

Valid Until

31.07.2026

Subject Alternative Names (2)

nirs.orgwww.nirs.org

SHA-256 Fingerprint

E7:05:1B:C2:BE:7F:4C:92:CA:99:7E:A2:97:3E:5F:B8:55:4B:2B:3C...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-length

19079

content-type

text/html; charset=UTF-8

date

Sat, 09 May 2026 11:08:35 GMT

link

<https://www.nirs.org/wp-json/>; rel="https://api.w.org/", <...

server

Apache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

inbound30.exchangedefender.com

Domain Information

nirs.org

Domain Age

30y 2m

Created

17.03.1996

Expires

18.03.2027

Last Updated

22.01.2026

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

70/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Oswald + Lato

WCAG Partial

65/100

Readability

/30

22/30

14px · LH 1.50

Hierarchy

/20

15/20

3.36x ratio

WCAG

/25

15/25

1:1 min contrast

Performance

/25

13/25

2 fonts · 3 req

Heading Font

Oswald

Display47px

Body Font

Lato

Sans14px

Contrast Ratio

1:1

6 issues

Reading Comfort

~45 CPL

Narrow lines

47px

20px

17px

14px

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

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 3.4x larger than body text.

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

GGoogle FontsFluid Type (rem)Flesch 50

Color Palette

13 unique colors

18.41:1 AAA Light

#ffffff

Background· 24.6%

#141415

Text· 5.7%

#f9c33f

Primary· 22.7%

#ddb34f

Accent· 5.9%

#77725d

Secondary· 5%

#a4a77f

Secondary· 3.7%

#eddeb5

Accent· 1.2%

#fddb86

Accent· 0.5%

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Twitter/X WidgetsFree

ShareThisFree

Pinterest WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

28 Resources

Scripts

Styles

Async

Defer

Top Script Sources

nirs.org(8)connect.facebook.net(4)platform.twitter.com(2)google-analytics.com(1)buttons-config.sharethis.com(1)

Website Identity

Nuclear Information and Resource Service

Organization

The Nuclear Information and Resource Service fights for a nuclear-free, carbon-free world powered by clean, renewable energy.

nirs@nirs.org

www.nirs.org/

30 years old

P.O. Box 8Mount Rainier, MD20712

Location detected: 🇺🇸 United Statesvia ip

Network Solutions, LLCen-US

Social Profiles

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 09 May 2026 at 11:09

Historical Analysis & Change Tracking