immigrationhistory.org

https://immigrationhistory.org· First analyzed 18 May 2026· Updated 18 May 2026

Export

Mobile

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Hosting Provider

University of Texas at Austin

IP Address

146.6.162.203

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Austin, United States

ASN

AS18

Organization

University of Texas at Austin

Server

Nginx

Nameservers

dns1.registrar-servers.com.dns2.registrar-servers.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

831 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

484 KB

22 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

Immigration Historyv2.3.0Custom

by Stacy Vlasits

Technology Stack

6 Technologies Detected

Libraries

CSS Frameworks

Fonts

Analytics

Web Servers

Plugins

SEO Analysis

B78/100

Meta Tags14/15

Content6/12

Headings3/8

Technical24/25

E-E-A-T2/7

Images4/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile4/4

Indexability3/3

immigrationhistory.orgimmigrationhistory.org

Immigration History - Immigration History

Explore the legacy of United States immigration policy over the last two and a half centuries. Find lessons suitable for high school students and a

Title Length41 chars

Recommended: 50-60 chars (~247px / 580px)

Description Length148 chars

Recommended: 120-160 chars

Issues (1)

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

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

14/100

Poor

4 13

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

Sponsored

AI & LLM Readiness

D45/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

7/25

Citation

14/25

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:2%

Words:176

Token eff.:Too Short

Sections/1K:34.1

Depth:1/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary12w

Descriptive Headingsavg 2w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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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.

84/100

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

15/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

6/15

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

1 recommendation

•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.

54/100

60 mg

CO₂e / view

484.2 KB

Page Weight

90%

Cleaner Than

New Visitor

68 mg

Returning (cached)

34 mg

Annual (10K/mo)

7.2 kg

Emission Segments

Data Center

13 mg

Network

14 mg

Device

32 mg

Resource Breakdown

JavaScript

123.3 KB

Images

48.1 KB

CSS

297.1 KB

Fonts

1.0 KB

HTML

14.7 KB

Green Hosting Not Verified

University of Texas at Austin

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

86%Very Good

Static / Informational

HTTPS

No WAF

177d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Internet2

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

27.04.2026

Valid Until

11.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

immigrationhistory.orgwww.immigrationhistory.org

SHA-256 Fingerprint

88:9F:AB:ED:7B:40:98:9B:19:EC:61:E2:57:D1:34:7B:06:CF:E3:29...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-private-network

true

cache-control

🟣 Private(private)

content-encoding

📦 Gzip(gzip)

content-security-policy

upgrade-insecure-requests; default-src * 'unsafe-eval' 'unsa...

content-type

text/html; charset=UTF-8

date

Mon, 18 May 2026 20:54:59 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (5)

eforward2.registrar-servers.com

eforward4.registrar-servers.com

eforward5.registrar-servers.com

eforward1.registrar-servers.com

+1 more

Domain Information

immigrationhistory.org

Domain Age

8y 2m

Created

02.03.2018

Expires

02.03.2027

Last Updated

05.02.2026

Registrar

NameCheap, 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.

74/100

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

Open Sans

WCAG Partial

51/100

Readability

/30

17/30

15px · LH 1.63

Hierarchy

/20

7/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

13/25

1 font · 2 req

Heading Font

Open Sans

Sans

Body Font

Open Sans

Sans15px

Contrast Ratio

1:1

12 issues

Reading Comfort

~40 CPL

Narrow lines

40px

20px

15px

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

❌ Very complex text: Flesch score 22/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 1.0:1).

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

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

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

GGoogle Fonts Buy on MyFontsFlesch 22

Color Palette

9 unique colors

Light

#ffffff

Background· 70.50000000000001%

#4171b1

Primary· 10.7%

#1b4a85

Accent· 4.3%

#1a3660

Accent· 3.5%

#295fa1

Primary· 3.4%

#5c80b5

Secondary· 2.7%

#a1afc2

Secondary· 1.6%

#edf0f2

Secondary· 1.3%

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

immigrationhistory.org(8)googletagmanager.com(1)

Website Identity

The University of Texas at Austin Department of History

Organization

Explore the legacy of United States immigration policy over the last two and a half centuries. Find lessons suitable for high school students and a

immigrationhistory.org/

8 years old

Location detected: 🇺🇸 United Statesvia ip

NameCheap, Inc.en-US

Sponsored

Last analyzed: 18 May 2026 at 20:55

Historical Analysis & Change Tracking