nsfsport.com

https://nsfsport.com· First analyzed 15 May 2026· Updated 15 May 2026

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nsfsport.com

Mobile

Sponsored

Hosting Provider

NSF International

IP Address

170.76.195.39

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Ann Arbor, United States

ASN

AS396224

Organization

NSF International

Server

Apache

Nameservers

ns-1386.awsdns-45.org.ns-1603.awsdns-08.co.uk.ns-686.awsdns-21.net.ns-86.awsdns-10.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.3 s10%

Speed Index

1.7 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

566 KB

36 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

NSF International

Technology Stack

10 Technologies Detected

CSS Frameworks

Analytics

Libraries

Other

Icon Libraries

Tag Managers

Web Servers

Languages

SEO Analysis

C60/100

Meta Tags9/15

Content11/12

Headings3/8

Technical15/25

E-E-A-T3/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

nsfsport.comnsfsport.com

Certified for Sport®

Certified for Sport® meets the growing demands of athletes, coaches and all those concerned about banned substances in sports supplements.

Title Length20 chars

Recommended: 50-60 chars (~119px / 580px)

Description Length138 chars

Recommended: 120-160 chars

Issues (1)

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

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

25 URLs

robots.txt

7 rules

Local SEO

Local Search Readiness

12/100

Poor

3 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

D46/100

Bot Access

20/25

Machine Read.

14/25

Schema Data

0/25

Citation

12/25

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:14%

Words:643

Token eff.:Optimal

Sections/1K:7.8

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary51w

Descriptive Headingsavg 9.4w

Canonical URL

Open Graph0/3

Twitter Card0/3

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.

74/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

18/20

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

9/15

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

ARIA & Roles

2/15

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.

51/100

70 mg

CO₂e / view

565.8 KB

Page Weight

80%

Cleaner Than

New Visitor

80 mg

Returning (cached)

40 mg

Annual (10K/mo)

8.4 kg

Emission Segments

Data Center

16 mg

Network

17 mg

Device

38 mg

Resource Breakdown

JavaScript

78.8 KB

Images

293.3 KB

CSS

164.5 KB

HTML

29.3 KB

Green Hosting Not Verified

NSF International

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

36d

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/1.1

Valid From

23.03.2026

Valid Until

21.06.2026

Subject Alternative Names (2)

nsfsport.comwww.nsfsport.com

SHA-256 Fingerprint

16:4A:72:99:51:55:20:81:41:1B:F7:54:19:E8:0F:41:3F:77:59:3C...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

Keep-Alive

content-type

text/html; charset=utf-8

date

Fri, 15 May 2026 14:37:10 GMT

keep-alive

timeout=5, max=100

server

Apache/2.4.6 (Red Hat Enterprise Linux) OpenSSL/1.0.2k-fips ...

transfer-encoding

chunked

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

nsfsport.com

Domain Age

17y 5m

Created

17.12.2008

Expires

17.12.2026

Last Updated

18.12.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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 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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Oswald + Archivo Narrow

WCAG Partial

71/100

Readability

/30

25/30

22px · LH 1.50

Hierarchy

/20

10/20

0.82x ratio · ✓ H1→H6

WCAG

/25

16/25

1.75:1 min contrast

Performance

/25

20/25

2 fonts · 3 req

Heading Font

Oswald

Display18px

Body Font

Archivo Narrow

Sans22px

Contrast Ratio

1.75:1

13 issues

Reading Comfort

~33 CPL

Narrow lines

18px

49px

30px

18px

22px

Perfect Fourth

Scale

✅ Excellent readability: 22px body text is ideal for all devices.

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

⚠️ Hard to read: Flesch score 36/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 13 elements below WCAG AA threshold (min 1.8:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

Buy on MyFontsFlesch 36

Color Palette

13 unique colors

Light

#ffffff

Primary· 15.1%

#274f7a

Accent· 16.5%

#1b3c60

Accent· 11%

#f47b1d

Primary· 9.1%

#00813f

Accent· 8.2%

#765342

Secondary· 6.9%

#045697

Primary· 6.8%

#8cb2a0

Secondary· 6.8%

Business & Marketing Stack

4 Tools Detected

Enterprise

CRM Systems

SalesforceEnterprise

Customer Relationship Management platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)local(3)pi.pardot.com(2)gstatic.com(1)kit.fontawesome.com(1)

Website Identity

nsfsport.com

17 years old

Location detected: 🇺🇸 United Statesvia ip

GoDaddy.com, LLCen

Social Profiles

X (Twitter)

Sponsored

Last analyzed: 15 May 2026 at 14:37

Historical Analysis & Change Tracking