papaparse.com

https://papaparse.com· First analyzed 30 Apr 2026· Updated 30 Apr 2026

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papaparse.com

Mobile

Sponsored

Hosting Provider

GitHub Pages

pages.github.com

IP Address

192.30.252.153

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Dulles, United States

ASN

AS36459

Organization

GitHub, Inc.

Server

GitHub.com

CDN

Fastly

Nameservers

isaac.ns.cloudflare.com.lucy.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

616 ms10%

Speed Index

801 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

66 KB

17 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Platform

GitHub Pages

CDN

Fastly

Technology Stack

8 Technologies Detected

CSS Frameworks

Libraries

Icon Libraries

Fonts

Analytics

Payments

SEO Analysis

D56/100

Meta Tags9/15

Content10/12

Headings8/8

Technical8/21

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

papaparse.compapaparse.com

Papa Parse - Powerful CSV Parser for JavaScript

No description available for this page.

Title Length47 chars

Recommended: 50-60 chars (~289px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description — important for click-through rates in SERPs

10 issues found

Upgrade to view details

Local SEO

Local Search Readiness

0/100

Poor

15 2

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

Sponsored

AI & LLM Readiness

D43/100

Bot Access

20/25

Machine Read.

16/25

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.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

code blocksheader/footer

Text ratio:28%

Words:963

Token eff.:Optimal

Sections/1K:5.2

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary68w

Descriptive Headingsavg 4w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

77/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

17/20

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

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.

60/100

A+

8 mg

CO₂e / view

66.4 KB

Page Weight

95%

Cleaner Than

New Visitor

9 mg

Returning (cached)

5 mg

Annual (10K/mo)

984 g

Emission Segments

Data Center

2 mg

Network

2 mg

Device

4 mg

Resource Breakdown

JavaScript

48.3 KB

CSS

11.9 KB

Fonts

1.2 KB

HTML

5.1 KB

Green Hosting Not Verified

GitHub Pages

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

78d

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 (1)

www.papaparse.com

SHA-256 Fingerprint

2C:58:18:77:8A:92:68:0E:6E:56:6E:9E:3D:77:C2:E1:FE:70:AC:51...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-origin

age

cache-control

🟡 600s(max-age=600)

content-encoding

📦 Gzip(gzip)

content-length

4894

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

papaparse.com

Domain Age

12y 4m

Created

02.01.2014

Expires

02.01.2027

Last Updated

23.04.2025

Registrar

Cloudflare, 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.

50/100

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, maximum-scale=1.0

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Arvo + Helvetica Neue

WCAG Partial

70/100

Readability

/30

23/30

18px · LH 1.75

Hierarchy

/20

16/20

5.56x ratio · ✓ H1→H6

WCAG

/25

16/25

4.44:1 min contrast

Performance

/25

15/25

System fonts

Heading Font

Arvo

Serif100px

Body Font

Helvetica Neue

Sans18px

Contrast Ratio

4.44:1

6 issues

Reading Comfort

~34 CPL

Narrow lines

100px

24px

48px

12px

18px

Minor Third

Scale

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

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 4.4:1).

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

✅ Strong hierarchy: Headlines are 5.6x larger than body text.

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

GGoogle FontsFlesch 51

Color Palette

7 unique colors

Light

#ffffff

Primary· 90.59999999999998%

#565c70

Secondary· 2.2%

#6aa0b7

Secondary· 1.2%

#c9d6d9

Secondary· 1.1%

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(6)google-analytics.com(1)

Website Identity

papaparse.com

12 years old

Location detected: 🇺🇸 United Statesvia ip

Cloudflare, Inc.

Social Profiles

X (Twitter)GitHub

Sponsored

Last analyzed: 30 Apr 2026 at 22:19

Historical Analysis & Change Tracking