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colossal.com

https://colossal.com· First analyzed 01 May 2026· Updated 01 May 2026
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colossal.com
Desktop screenshot of colossal.com
Mobile screenshot of colossal.com
Mobile

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Hosting Provider

wpengine.com

IP Address

141.193.213.10

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-cloud-d3.googledomains.com.ns-cloud-d2.googledomains.com.ns-cloud-d4.googledomains.com.ns-cloud-d1.googledomains.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
452 ms10%
Speed Index
588 ms10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
24 KB
143 requests

Image Optimization

WebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
CMS
WordPress
Infrastructure
Hosting
WP Engine
CDN
Cloudflare

Technology Stack

18 Technologies Detected

SEO Analysis

A88/100
26
1
2
Meta Tags15/15
Content11/12
Headings3/8
Technical24/25
E-E-A-T7/7
Images2/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile4/4
Indexability3/3
C
colossal.comcolossal.com

Solving the Colossal Problem of Extinction | Colossal

Combining the science of genetics with the business of discovery, we are moving de-extinction forward by resurrecting the Woolly Mammoth through gene editing.

Title Length53 chars

Recommended: 50-60 chars (~309px / 580px)

Description Length158 chars

Recommended: 120-160 chars

Issues (2)

  • Missing H1 tag — every page should have exactly one H1
  • Most images missing alt text (110/110) — critical for accessibility and SEO

Crawlability

Sitemap

Type: index

10 URLs

10 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

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.

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AI & LLM Readiness

C62/100
Bot Access
20/25
Machine Read.
12/25
Schema Data
13/25
Citation
17/25

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:9%
Words:1,761
Token eff.:Optimal
Sections/1K:11.4

Structured Data

6 JSON-LD
Article×1.2Person×1.3Organization×1.1WebSiteSearchAction
sameAs entity links

Citation Readiness

Opening Summary10w
Descriptive Headingsavg 5.6w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (6)
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.
B
76/100
13
Passed
5
Critical
1
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
14/20
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
8/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • Accessibility recommendation preview...

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.
71/100
A+
3 mg
CO₂e / view
24.5 KB
Page Weight
95%
Cleaner Than
New Visitor
3 mg
vs
Returning (cached)
1 mg
Annual (10K/mo)
300 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
2 mg
Resource Breakdown
JavaScript
300 B
HTML
24.2 KB
Green Hosting Verified
WP Engine
Provider Match
3 recommendations
  • Carbon footprint recommendation preview...
F

Security Score

26%Critical
Interactive

HTTPS

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+H3

Valid From

06.03.2026

Valid Until

04.06.2026

Subject Alternative Names (1)

colossal.com

SHA-256 Fingerprint

83:49:CB:04:C6:29:99:0B:2F:86:A4:E8:C9:3A:85:57:07:C0:56:1D...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🟡 600s(max-age=600, must-revalidate)
cf-cache-status
DYNAMIC
cf-ray🇫🇷 Paris
9f4b8d964d3722ab-CDG
content-encoding
Brotli(br)
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Google Workspace

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (6)

alt2.aspmx.l.google.com
k7nxesaen75ipj6qxrt2pcmexif5wgy6i6qxxmznnl3eucubkafa.mx-verification.google.com
alt1.aspmx.l.google.com
alt3.aspmx.l.google.com

+2 more

Domain Information

colossal.com

Domain Age
33 years

Created

14.04.1993

Expires

15.04.2027

Last Updated

14.04.2026

Registrar

Tucows Domains Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
D
56/100
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, minimum-scale=1.0, maximum-scale=1.0, initial-scale=1.0
3 recommendations
  • Mobile compatibility recommendation preview...

Typography & Readability

NB Architekt Std + Telegraf

WCAG Partial
68/100
Readability
/30
26/30

35px · LH 1.40

Hierarchy
/20
7/20
WCAG
/25
17/25

3.79:1 min contrast

Performance
/25
18/25

2 fonts · 4 req

Heading Font

NB Architekt Std

Sans

Body Font

Telegraf

Sans35px

Contrast Ratio

3.79:1

2 issues

Reading Comfort

~36 CPL

Narrow lines
192px
h2
63px
h3
58px
h4
35px
p

✅ Excellent readability: 35px body text is ideal for all devices.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 37/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 3.8:1).

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

⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

Buy on MyFontsFluid TypeFlesch 37

Color Palette

7 unique colors
5.93:1 AA Dark
#000000
Background· 89.3%
#838b79
Other· 1%
#ebf0dd
Primary· 1.2%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

2

User behavior and product analytics

Advertising

2

Ad platforms and retargeting pixels

2

Categories

4

Total Tools

0

Enterprise

2

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
6
Async
0
Defer

Top Script Sources

colossal.com(13)googletagmanager.com(3)https: (1)static.ads-twitter.com(1)google-analytics.com(1)

Website Identity

Colossal Biosciences

Colossal Biosciences

Organization
[email protected]
33 years old
Location detected: 🇺🇸 United Statesvia ip
Tucows Domains Inc.📧 Google Workspaceen

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Last analyzed: 01 May 2026 at 03:04

Historical Analysis & Change Tracking

colossal.com Technology Stack - Built With jQuery, GSAP, Slick Carousel, ScrollMagic, Bootstrap | StackOptic | StackOptic