nelsonlabs.com

https://nelsonlabs.com· First analyzed 29 May 2026· Updated 29 May 2026

Export

nelsonlabs.com

Mobile

Sponsored

Hosting Provider

WP Engine

wpengine.com

IP Address

141.193.213.21

Site Location

🇺🇸 United Statesvia phone

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns94.worldnic.com.ns93.worldnic.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.6 s10%

Speed Index

2.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

843 KB

91 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

nelsonlabsCustom

Technology Stack

26 Technologies Detected

Plugins

Jetpack

Search Filter Dflip

Elementor

Lightweight Grid Columns Gc Cf7 User Info If So Responsive Menu Pro Display Tests

Analytics

Libraries

Fonts

Adobe Fonts (Typekit)Adobe Fonts

Advertising

Google Ads LinkedIn Ads

Other

Other

CSS Frameworks

Icon Libraries

Tag Managers

CDN

Customer Support

SEO Analysis

A83/100

Meta Tags12/15

Content10/12

Headings8/8

Technical24/25

E-E-A-T2/7

Images4/7

Links4/5

URL5/5

Social4/5

Freshness4/4

Mobile3/4

Indexability3/3

nelsonlabs.comnelsonlabs.com

Nelson Labs - Microbiology Testing Lab

We are a leading, global testing lab specializing in expert advisory and testing solutions for medical device, pharmaceutical, tissue & biologics companies

Title Length38 chars

Recommended: 50-60 chars (~227px / 580px)

Description Length155 chars

Recommended: 120-160 chars

Issues (0)

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

15 URLs

15 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

36/100

Needs Work

11 8

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:3%

Words:1,318

Token eff.:Optimal

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary73w

Descriptive Headingsavg 3.5w

Canonical URL

Open Graph2/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

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.

88/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

20/20

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

Forms & Inputs

12/15

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

10/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 recommendations

•Accessibility recommendation preview...

Upgrade to view recommendations

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.

61/100

85 mg

CO₂e / view

843.2 KB

Page Weight

80%

Cleaner Than

New Visitor

97 mg

Returning (cached)

49 mg

Annual (10K/mo)

10.2 kg

Emission Segments

Data Center

4 mg

Network

25 mg

Device

56 mg

Resource Breakdown

JavaScript

216.2 KB

Images

418.5 KB

CSS

166.1 KB

HTML

41.4 KB

Other

1.0 KB

Green Hosting Verified

WP Engine

Provider Match

3 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

25%Critical

Critical / Transactional

HTTPS

WAF

49d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

18.04.2026

Valid Until

17.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.nelsonlabs.com

SHA-256 Fingerprint

D8:BA:B4:BF:78:81:B9:60:96:B5:66:B7:A2:CB:20:95:36:56:8E:64...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 600s(max-age=600, must-revalidate)

cf-cache-status

DYNAMIC

cf-ray🇮🇹 Milan

a036e7807e76ed54-MXP

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mxb-00350501.gslb.pphosted.com

mxa-00350501.gslb.pphosted.com

Domain Information

nelsonlabs.com

Domain Age

30y 1m

Created

29.04.1996

Expires

30.04.2033

Last Updated

30.04.2023

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

CookieYes

Cookie Consent Banner

CookieYes

GDPR Indicators

Cookie consent banner detected

CMP: CookieYes

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.

63/100

Mobile Friendly27 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, user-scalable=no, initial-scale=1, maximum-scale=1

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

trasandina

WCAG Partial

75/100

Readability

/30

25/30

16px · LH 1.50

Hierarchy

/20

18/20

3.88x ratio · ✓ H1→H6

WCAG

/25

17/25

2.59:1 min contrast

Performance

/25

15/25

1 font · 1 req

Heading Font

trasandina

Sans62px

Body Font

trasandina

Sans16px

Contrast Ratio

2.59:1

15 issues

Reading Comfort

~41 CPL

Narrow lines

62px

52px

22px

20px

16px

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

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

⚠️ Hard to read: Flesch score 34/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 2.6:1).

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

✅ Strong hierarchy: Headlines are 3.9x larger than body text.

AAdobe Fonts Buy on MyFontsFlesch 34

Color Palette

11 unique colors

2.67:1 Fail Light

#ffffff

Background· 51.39999999999999%

#9d9ea4

Other· 6.7%

#014680

Primary· 7.9%

#52cbe1

Accent· 6.8%

#b8c9c4

Secondary· 6.2%

#d4d9e2

Secondary· 5.4%

#448ba9

Secondary· 3.6%

#edeff3

Secondary· 3.5%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

HotjarMid-Market

Google Tag ManagerFree

User behavior and product analytics

Advertising

LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

CookieYesSMB

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

nelsonlabs.com(8)static.hotjar.com(3)gstatic.com(3)snap.licdn.com(2)googletagmanager.com(2)

Website Identity

Nelson Labs

Organization

We are a leading, global testing lab specializing in expert advisory and testing solutions for medical device, pharmaceutical, tissue & biologics companies

[email protected]

+18012907500

www.nelsonlabs.com/

30 years old

Location detected: 🇺🇸 United Statesvia phone

Network Solutions, LLCen-US

Social Profiles

Facebook LinkedIn

Sponsored

Last analyzed: 29 May 2026 at 16:34

Historical Analysis & Change Tracking