stuller.com

https://stuller.com· First analyzed 14 May 2026· Updated 14 May 2026

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stuller.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

44.215.50.98

Site Location

🇺🇸 United Statesvia phone

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Nameservers

ns-1619.awsdns-10.co.uk.ns-516.awsdns-00.net.ns-56.awsdns-07.com.ns-1094.awsdns-08.org.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.8 MB

152 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

Infrastructure

Hosting

Amazon Web Services (AWS)

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

14 Technologies Detected

CSS Frameworks

Libraries

Analytics

Frameworks

Other

Icon Libraries

Tag Managers

Advertising

Microsoft Advertising

Customer Support

Zendesk

Security

reCAPTCHA

SEO Analysis

C61/100

Meta Tags15/15

Content3/12

Headings3/8

Technical17/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile1/4

Indexability3/3

stuller.comstuller.com

Fine Jewelry Manufacturer | Jewelry Supplies | Stuller

Stuller, Inc. is the #1 supplier of fine jewelry, findings, mountings, tools, packaging, diamonds & gemstones for today's retail jeweler.

Title Length54 chars

Recommended: 50-60 chars (~323px / 580px)

Description Length137 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (8 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

8 issues found

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Crawlability

Sitemap

Type: standard

30,248 URLs

robots.txt

80 rules

Sitemap reference found

Local SEO

Local Search Readiness

18/100

Poor

5 10 2

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

Sponsored

AI & LLM Readiness

F37/100

Bot Access

18/25

Machine Read.

11/25

Schema Data

3/25

Citation

5/25

AI Bot Access

11/14 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:0%

Words:425

Token eff.:Optimal

Structured Data

1 JSON-LD

WebSiteSearchAction

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card3/3

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.

64/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

6/20

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

7/15

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

ARIA & Roles

1/15

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.

44/100

187 mg

CO₂e / view

1.8 MB

Page Weight

50%

Cleaner Than

New Visitor

214 mg

Returning (cached)

107 mg

Annual (10K/mo)

22.5 kg

Emission Segments

Data Center

9 mg

Network

55 mg

Device

123 mg

Resource Breakdown

JavaScript

1.5 MB

Images

2.0 KB

CSS

282.4 KB

HTML

37.2 KB

Other

19.6 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

186d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

03.05.2026

Valid Until

16.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.stuller.comstuller.com

SHA-256 Fingerprint

88:C7:CD:75:8C:23:16:50:42:9F:1F:2C:BD:D6:83:0C:34:F1:54:B5...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache)

content-encoding

📦 Gzip(gzip)

content-length

37763

content-type

text/html; charset=utf-8

date

Thu, 14 May 2026 19:49:50 GMT

expires

-1

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx1.hc5364-95.iphmx.com

mx2.hc5364-95.iphmx.com

Domain Information

stuller.com

Domain Age

30y 3m

Created

10.02.1996

Expires

11.02.2027

Last Updated

13.12.2021

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

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.

72/100

Mobile Friendly19 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, minimum-scale=1

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Roboto

WCAG Partial

63/100

Readability

/30

22/30

18px · LH 1.60

Hierarchy

/20

6/20

WCAG

/25

17/25

2.47:1 min contrast

Performance

/25

18/25

System fonts

Heading Font

Roboto

Sans

Body Font

Roboto

Sans18px

Contrast Ratio

2.47:1

8 issues

Reading Comfort

~39 CPL

Narrow lines

50px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 47/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 2.5:1).

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

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

Flesch 47

Color Palette

9 unique colors

2.03:1 Fail Light

#efefef

Background· 19.8%

#a8aaad

Other· 7.5%

#ffffff

Primary· 0%

#dfe0e5

Secondary· 25.500000000000004%

#42515c

Secondary· 8.2%

#849c9e

Secondary· 5.5%

#a9bcbe

Secondary· 4.6%

#5a6e77

Secondary· 3.4%

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(10)bat.bing.com(4)googletagmanager.com(2)youtube.com(2)cdn.cookielaw.org(1)

Website Identity

stuller.com

+18008777777

30 years old

Location detected: 🇺🇸 United Statesvia phone

Network Solutions, LLCen-US

Social Profiles

Facebook X (Twitter)Instagram LinkedIn Pinterest

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Last analyzed: 14 May 2026 at 19:50

Historical Analysis & Change Tracking