portaudio.com

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

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portaudio.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

3.229.105.207

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Server

Apache

Nameservers

ns1.shopco.com.ns2.shopco.com.ns3.shopco.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

437 ms10%

Speed Index

568 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

18 KB

8 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

Technology Stack

3 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Web Servers

Apachev2.4.66

SEO Analysis

D54/100

Meta Tags14/15

Content9/12

Headings0/8

Technical7/21

E-E-A-T3/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

portaudio.comportaudio.com

PortAudio - an Open-Source Cross-Platform Audio API

PortAudio is a cross platform, open-source, audio I/O library. It provides a very simple API for recording and/or playing sound using a simple callback funct...

Description truncated.

Title Length51 chars

Recommended: 50-60 chars (~313px / 580px)

Description Length161 chars

Recommended: 120-160 chars

Issues (1)

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

10 issues found

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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

F32/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

0/25

Citation

8/25

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

Text ratio:28%

Words:240

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary58w

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

58/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

3/20

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

1/15

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

4 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.

62/100

A+

2 mg

CO₂e / view

18.2 KB

Page Weight

95%

Cleaner Than

New Visitor

2 mg

Returning (cached)

1 mg

Annual (10K/mo)

216 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

1 mg

Resource Breakdown

Images

6.9 KB

CSS

5.4 KB

HTML

5.9 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

19d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

05.03.2026

Valid Until

03.06.2026

Subject Alternative Names (20)

100dollarguitar.comalgomusic.comaphorismoftheday.comauracle.orgcompusonics.comdev.maryvalente.comdidkovsky.comdoctornerve.com+12 more

SHA-256 Fingerprint

C1:D2:E8:4E:89:C4:76:96:37:29:82:33:68:2A:35:67:E5:8F:90:1A...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

connection

Keep-Alive

content-type

text/html; charset=UTF-8

date

Fri, 15 May 2026 13:29:34 GMT

keep-alive

timeout=5, max=100

server

Apache/2.4.66 (Amazon Linux) OpenSSL/3.5.5

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

portaudio.com

Domain Age

25y 3m

Created

26.01.2001

Expires

26.01.2027

Last Updated

12.04.2026

Registrar

Tucows Domains Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

52/100

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

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Verdana

WCAG Partial

57/100

Readability

/30

15/30

15px · LH --

Hierarchy

/20

9/20

WCAG

/25

19/25

2.85:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Verdana

Body Font

Verdana

Sans15px

Contrast Ratio

2.85:1

1 issue

Reading Comfort

~103 CPL

Too wide

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

❌ Very long lines: ~103 chars/line causes eye strain. Add max-width constraint.

⚠️ Hard to read: Flesch score 45/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 2.9:1).

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFlesch 45

Color Palette

7 unique colors

3.85:1 AA Large Light

#ffffff

Background· 90.10000000000001%

#818282

Other· 1.6%

#e0ede8

Primary· 2.5%

#a1bfc5

Secondary· 0.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

2 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(1)

Website Identity

portaudio.com

25 years old

Location detected: 🇺🇸 United Statesvia ip

Tucows Domains Inc.

Social Profiles

GitHub

Sponsored

Last analyzed: 15 May 2026 at 13:29

Historical Analysis & Change Tracking