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polygon.io

https://polygon.io· First analyzed 15 May 2026· Updated 15 May 2026
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polygon.io
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Mobile screenshot of polygon.io
Mobile

Sponsored

Hosting Provider

Polygon.io, LLC

IP Address

198.44.194.57

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Vancouver, Canada

ASN

AS39979

Organization

Polygon.io, LLC

Nameservers

ns-274.awsdns-34.com.ns-1013.awsdns-62.net.ns-1403.awsdns-47.org.ns-1595.awsdns-07.co.uk.

Performance

92

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%
624 KB
84 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Styling
Tailwind CSS
Infrastructure
Hosting
Polygon.io, LLC
CDN
Vercel Image

Technology Stack

9 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
PostHog

Advertising

2
Twitter AdsLinkedIn Ads

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Customer Support

1
Zendesk

SEO Analysis

C68/100
23
3
1
Meta Tags9/15
Content3/12
Headings8/8
Technical18/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social5/5
Freshness2/4
Mobile4/4
Indexability3/3
P
polygon.iopolygon.io

Stock Market API | Massive

Stock API with real-time and historical tick data, unlimited usage via REST or WebSockets, standardized JSON and CSV formats. Instant access free tier.

Title Length26 chars

Recommended: 50-60 chars (~160px / 580px)

Description Length151 chars

Recommended: 120-160 chars

Issues (1)

  • • Very thin content (5 words). Search engines need substantial content for ranking.

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

343 URLs

robots.txt

4 rules

Sitemap reference found

Allows all crawlers

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

D40/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
7/25

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:2%
Words:1,009
Token eff.:Optimal

Structured Data

No Schema

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 (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.
A
83/100
12
Passed
1
Critical
0
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
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
9/15
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.
1 recommendation
  • •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.
55/100
A
77 mg
CO₂e / view
623.6 KB
Page Weight
80%
Cleaner Than
New Visitor
88 mg
vs
Returning (cached)
44 mg
Annual (10K/mo)
9.3 kg
Emission Segments
Data Center
17 mg
Network
19 mg
Device
41 mg
Resource Breakdown
JavaScript
543.1 KB
Images
21.2 KB
CSS
23.3 KB
HTML
33.4 KB
Other
2.6 KB
Green Hosting Not Verified
Polygon.io, LLC
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

64d

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

19.04.2026

Valid Until

18.07.2026

Subject Alternative Names (2)

massive.comny5.massive.com

SHA-256 Fingerprint

36:8F:06:25:D2:57:3B:E6:51:34:A0:0B:BD:4F:8F:93:64:FD:68:69...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(private, no-cache, no-store, max-age=0, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Fri, 15 May 2026 05:11:05 GMT
strict-transport-security
max-age=15724800; includeSubDomains
vary
RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Rout...
Good Warning Issue

Email Infrastructure

Google Workspace

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx.l.google.com
alt2.aspmx.l.google.com
alt4.aspmx.l.google.com
alt1.aspmx.l.google.com

+1 more

Domain Information

polygon.io

Domain Age
13y 7m

Created

20.09.2012

Expires

20.09.2029

Last Updated

01.03.2025

Registrar

NameCheap, Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
B
71/100
Mobile Friendly
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...
Upgrade to view recommendations

Typography & Readability

Apple Color Emoji

WCAG Partial
76/100
Readability
/30
20/30

18px · LH 1.78

Hierarchy
/20
19/20

7.11x ratio · ✓ H1→H6

WCAG
/25
16/25

1:1 min contrast

Performance
/25
21/25

1 font

Heading Font

Apple Color Emoji

Sans128px

Body Font

Apple Color Emoji

Sans18px

Contrast Ratio

1:1

13 issues

Reading Comfort

~35 CPL

Narrow lines
128px
h1
48px
h2
24px
h3
18px
p

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

⚠️ Hard to read: Flesch score 43/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 13 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 7.1x larger than body text.

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 43

Color Palette

4 unique colors
Light
#ffffff
Background· 92.89999999999998%
#7089bb
Primary· 2.5%
#cdd2d9
Secondary· 2.5%
#15264e
Accent· 2.1%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

2
Google AnalyticsFree
Google Tag ManagerFree

User behavior and product analytics

Advertising

3
Twitter/X AdsMid-Market
LinkedIn AdsEnterprise
Reddit PixelMid-Market

Ad platforms and retargeting pixels

2

Categories

5

Total Tools

1

Enterprise

2

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

Sponsored

Scripts & Styles

21 Resources

20
Scripts
1
Styles
16
Async
0
Defer

Top Script Sources

local(11)us-assets.i.posthog.com(4)googletagmanager.com(2)static.ads-twitter.com(1)redditstatic.com(1)

Website Identity

polygon.io

13 years old
Location detected: 🇨🇦 Canadavia ip
NameCheap, Inc.📧 Google Workspaceen

Sponsored

Last analyzed: 15 May 2026 at 05:11

Historical Analysis & Change Tracking