alphavantage.co

https://alphavantage.co· First analyzed 08 May 2026· Updated 08 May 2026

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alphavantage.co

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.66.170.11

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

chase.ns.cloudflare.com.sky.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

807 ms10%

Speed Index

1.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

317 KB

22 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

8 Technologies Detected

CSS Frameworks

Analytics

Libraries

Icon Libraries

Fonts

CDN

SEO Analysis

D53/100

Meta Tags12/15

Content9/12

Headings3/8

Technical11/21

E-E-A-T3/7

Images4/7

Links2/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

alphavantage.coalphavantage.co

Free Stock APIs in JSON & Excel | Alpha Vantage

Alpha Vantage offers free stock APIs in JSON and CSV formats for realtime and historical stock market data, options, forex, commodity, cryptocurrency feeds a...

Description truncated.

Title Length47 chars

Recommended: 50-60 chars (~283px / 580px)

Description Length375 chars

Recommended: 120-160 chars

Issues (1)

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

12 issues found

Upgrade to view details

Local SEO

Local Search Readiness

5/100

Poor

2 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

D40/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

0/25

Citation

9/25

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:435

Token eff.:Optimal

Sections/1K:6.9

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary31w

Descriptive Headingsavg 3.3w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

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.

80/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

13/20

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

8/15

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.

75/100

A+

32 mg

CO₂e / view

316.7 KB

Page Weight

90%

Cleaner Than

New Visitor

37 mg

Returning (cached)

18 mg

Annual (10K/mo)

3.8 kg

Emission Segments

Data Center

2 mg

Network

9 mg

Device

21 mg

Resource Breakdown

JavaScript

48.4 KB

Images

157.1 KB

CSS

103.2 KB

Fonts

2.8 KB

HTML

5.3 KB

Green Hosting Verified

Cloudflare

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

88%Very Good

Static / Informational

HTTPS

WAF

70d

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

Valid From

18.04.2026

Valid Until

17.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

alphavantage.co*.alphavantage.co

SHA-256 Fingerprint

6E:8B:49:84:A8:88:A1:9A:3B:FF:AD:AB:BE:F2:C1:72:B0:7A:94:DD...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cf-cache-status

DYNAMIC

cf-ray🇮🇹 Milan

9f89014359c71575-MXP

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

cross-origin-opener-policy

same-origin

date

Fri, 08 May 2026 14:02:56 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (5)

aspmx2.googlemail.com

aspmx3.googlemail.com

alt1.aspmx.l.google.com

aspmx.l.google.com

+1 more

Domain Information

alphavantage.co

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

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.

65/100

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

Helvetica Neue

WCAG Partial

67/100

Readability

/30

23/30

20px · LH 1.60

Hierarchy

/20

6/20

WCAG

/25

17/25

1:1 min contrast

Performance

/25

21/25

System fonts

Heading Font

Helvetica Neue

Sans

Body Font

Helvetica Neue

Sans20px

Contrast Ratio

1:1

23 issues

Reading Comfort

~38 CPL

Narrow lines

24px

18px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

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

❌ Very complex text: Flesch score 20/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 23 elements below WCAG AA threshold (min 1.0:1).

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

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

GGoogle FontsFlesch 20

Color Palette

6 unique colors

13.77:1 AAA Dark

#2d2d2d

Other· 83.7%

#ffffff

Text· 6.2%

#3e4a50

Primary· 3.3%

#97aea9

Secondary· 2.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(2)googletagmanager.com(1)cdn.jsdelivr.net(1)ajax.googleapis.com(1)static.cloudflareinsights.com(1)

Website Identity

alphavantage.co

support@alphavantage.co

Location detected: 🇨🇦 Canadavia ip

📧 Google Workspaceen

Sponsored

Last analyzed: 08 May 2026 at 14:03

Historical Analysis & Change Tracking