sourcify.com
Comparing v3 vs v4
Mar 17, 2026 → Mar 23, 2026
55
/ 100
→
+1873
/ 100
#
Criterion
v3
Status
v4
Status
Delta
1
llms.txt File
10/10
STRONG
10/10
STRONG
0
2
Schema.org Structured Data
9/10
STRONG
9/10
STRONG
0
3
Q&A Content Format
7/10
GOOD
9/10
STRONG
+2
4
Clean, Crawlable HTML
6/10
MODERATE
6/10
MODERATE
0
5
Entity Authority & NAP Consistency
8/10
STRONG
8/10
STRONG
0
6
robots.txt for AI Crawlers
5/10
PARTIAL
5/10
PARTIAL
0
7
Comprehensive FAQ Section
4/10
PARTIAL
5/10
PARTIAL
+1
8
Original Data & Expert Analysis
8/10
STRONG
8/10
STRONG
0
9
Internal Linking Structure
10/10
STRONG
10/10
STRONG
0
10
Semantic HTML5 & Accessibility
4/10
PARTIAL
4/10
PARTIAL
0
11
Content Freshness Signals
5/10
PARTIAL
5/10
PARTIAL
0
12
Sitemap Completeness
6/10
MODERATE
6/10
MODERATE
0
13
RSS/Atom Feed
10/10
STRONG
10/10
STRONG
0
14
Table & List Extractability
3/10
WEAK
5/10
PARTIAL
+2
15
Definition Patterns
5/10
PARTIAL
5/10
PARTIAL
0
16
Direct Answer Paragraphs
7/10
GOOD
10/10
STRONG
+3
17
Content Licensing & AI Permissions
2/10
POOR
2/10
POOR
0
18
Author & Expert Schema
2/10
POOR
4/10
PARTIAL
+2
19
Fact & Data Density
8/10
STRONG
10/10
STRONG
+2
20
Canonical URL Strategy
10/10
STRONG
10/10
STRONG
0
21
Content Publishing Velocity
2/10
POOR
2/10
POOR
0
22
Schema Coverage & Depth
9/10
STRONG
9/10
STRONG
0
23
Speakable Schema
0/10
MISSING
0/10
MISSING
0
24
Query-Answer Alignment
4/10
PARTIAL
4/10
PARTIAL
0
25
Content Cannibalization
5/10
PARTIAL
10/10
STRONG
+5
26
Visible Date Signal
7/10
GOOD
3/10
WEAK
-4
27
Topic Coherence
5/10
PARTIAL
9/10
STRONG
+4
28
Content Depth
3/10
WEAK
9/10
STRONG
+6
29
Citation-Ready Writing Quality
6/10
MODERATE
8/10
STRONG
+2
30
Helpful Purpose Alignment
--
N/A
6/10
MODERATE
+6
31
Answer-First Placement
3/10
WEAK
5/10
PARTIAL
+2
32
First-Hand Experience Signals
--
N/A
3/10
WEAK
+3
33
Evidence Packaging
2/10
POOR
5/10
PARTIAL
+3
34
Creator Transparency
--
N/A
3/10
WEAK
+3
35
Entity Disambiguation
0/10
MISSING
4/10
PARTIAL
+4
36
Methodology Transparency
--
N/A
2/10
POOR
+2
37
Extraction Friction Score
4/10
PARTIAL
4/10
PARTIAL
0
38
Image Context for AI
0/10
MISSING
0/10
MISSING
0
39
Duplicate Content Blocks
--
N/A
10/10
STRONG
+10
40
Cross-Page Duplicate Content
--
N/A
10/10
STRONG
+10
Opportunities
10
v3
10
v4
Added in v4
+ Implement Semantic HTML5
+ Increase Publishing Frequency
+ Reduce Extraction Friction
+ Fix HTML Structure & Enable HTTPS
Removed since v3
- Focus Content on Core Topics
- Increase Content Depth
- Enhance Author & Expert Schema
- Add Answer-First Placement
Findings Summary
Criterion
v3 Findings
v4 Findings
Delta
llms.txt File
3
3
0
Schema.org Structured Data
4
4
0
Q&A Content Format
3
4
+1
Clean, Crawlable HTML
5
5
0
Entity Authority & NAP Consistency
4
4
0
robots.txt for AI Crawlers
2
2
0
Comprehensive FAQ Section
5
5
0
Original Data & Expert Analysis
4
4
0
Internal Linking Structure
5
5
0
Semantic HTML5 & Accessibility
6
6
0
Content Freshness Signals
4
4
0
Sitemap Completeness
4
4
0
RSS/Atom Feed
3
3
0
Table & List Extractability
5
5
0
Definition Patterns
4
4
0
Direct Answer Paragraphs
3
3
0
Content Licensing & AI Permissions
4
4
0
Author & Expert Schema
5
5
0
Fact & Data Density
4
4
0
Canonical URL Strategy
4
4
0
Content Publishing Velocity
2
2
0
Schema Coverage & Depth
5
5
0
Speakable Schema
2
2
0
Query-Answer Alignment
2
2
0
Content Cannibalization
2
2
0
Visible Date Signal
2
3
+1
Topic Coherence
2
3
+1
Content Depth
2
3
+1
Citation-Ready Writing Quality
4
4
0
Helpful Purpose Alignment
--
2
--
Answer-First Placement
3
3
0
First-Hand Experience Signals
--
2
--
Evidence Packaging
3
4
+1
Creator Transparency
--
2
--
Entity Disambiguation
3
3
0
Methodology Transparency
--
2
--
Extraction Friction Score
4
3
-1
Image Context for AI
3
3
0
Duplicate Content Blocks
--
2
--
Cross-Page Duplicate Content
--
2
--