pdx.su

https://pdx.su· First analyzed 03 Jun 2026· Updated 03 Jun 2026

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pdx.su

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

75.2.60.5

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Seattle, United States

ASN

AS16509

Organization

AWS Global Accelerator (GLOBAL)

Server

Netlify

Nameservers

dns3.p05.nsone.net.dns4.p05.nsone.net.dns1.p05.nsone.net.dns2.p05.nsone.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

608 ms10%

Speed Index

790 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

46 KB

10 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Platform

Netlify

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

Fonts

Adobe Fonts (Typekit)Adobe Fonts

CSS Frameworks

Tailwind CSS

Analytics

Plausible Analytics

Platforms

Netlify

SEO Analysis

D55/100

Meta Tags5/15

Content9/12

Headings0/8

Technical15/25

E-E-A-T3/7

Images0/7

Links5/5

URL5/5

Social4/5

Freshness2/4

Mobile4/4

Indexability3/3

pdx.supdx.su

pdx.su

The personal blog of software engineer Jeff Sandberg

Title Length6 chars

Recommended: 50-60 chars (~35px / 580px)

Description Length52 chars

Recommended: 120-160 chars

Issues (1)

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

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

34 URLs

robots.txt

2 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

F35/100

Bot Access

20/25

Machine Read.

5/25

Schema Data

0/25

Citation

10/25

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

nav

Text ratio:13%

Words:241

Token eff.:Too Short

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph2/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (7)

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.

72/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

12/20

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.

77/100

A+

5 mg

CO₂e / view

46.0 KB

Page Weight

95%

Cleaner Than

New Visitor

5 mg

Returning (cached)

3 mg

Annual (10K/mo)

552 g

Emission Segments

Data Center

<0.001 g

Network

1 mg

Device

3 mg

Resource Breakdown

JavaScript

36.5 KB

Images

909 B

CSS

5.0 KB

HTML

3.2 KB

Other

302 B

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

1 recommendation

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

No WAF

34d

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/2

Valid From

09.04.2026

Valid Until

08.07.2026

Subject Alternative Names (2)

pdx.suwww.pdx.su

SHA-256 Fingerprint

E5:6E:96:2F:62:06:1B:8B:7F:89:48:E3:6E:C3:E5:F4:66:9F:AE:32...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

cache-control

🟡 0s(public,max-age=0,must-revalidate)

cache-status

"Netlify Edge"; fwd=miss

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Fastmail

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

in2-smtp.messagingengine.com

in1-smtp.messagingengine.com

Domain Information

pdx.su

DNSSEC

Not Enabled

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.

67/100

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=1.0

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Times New Roman

WCAG AA

67/100

Readability

/30

19/30

16px · LH --

Hierarchy

/20

8/20

WCAG

/25

22/25

4.99:1 min contrast

Performance

/25

18/25

1 font · 3 req

Heading Font

Times New Roman

Body Font

Times New Roman

Serif16px

Contrast Ratio

4.99:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Family

left aligned

✅ Excellent readability: 16px body text is ideal for all devices.

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.0:1).

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

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

AAdobe Fonts Buy on MyFontsFlesch 0

Color Palette

5 unique colors

Light

#ffffff

Primary· 84.7%

#b0c2d5

Secondary· 4.9%

#d0dae2

Secondary· 4.5%

#99a9bd

Secondary· 2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

4 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(2)

Website Identity

pdx.su

Location detected: 🇺🇸 United Statesvia ip

📧 Fastmailen

Social Profiles

GitHub

Sponsored

Last analyzed: 03 Jun 2026 at 12:25

Historical Analysis & Change Tracking