List Bulb vs Productivity Directory

Backlink Leaderboard · Head-to-Head Comparison

List Bulb

#277 of 310 · LDS 2

Productivity Directory

#261 of 310 · LDS 2

Comparing Link Dilution Score, AI visibility, Domain Rating and dofollow status. Scores are calculated using the FreeMalta LDS formula — not Domain Rating alone. How we calculate →

Score comparison

Link Dilution Score (LDS)

List Bulb

Productivity Directory

AI Visibility Score

List Bulb

1.5

Productivity Directory

4.7

Domain Rating (DR)

List Bulb

Productivity Directory

Full breakdown

Every metric, side by side.

Metric

List Bulb

Productivity Directory

LDS Score

AI Visibility

1.5

4.7

AI Stars

★

Domain Rating

Link Type

Nofollow

Pricing

Free

What the scores actually mean.

Too close to call.

List Bulb and Productivity Directory are within 0.5 LDS points of each other. Both are valid backlink sources — your choice should depend on which is easier to get listed on and which fits your content strategy.

Platform detail

What each platform actually is.

List Bulb

A nofollow entry on List Bulb (DR39) establishes brand legitimacy for Perplexity AI search. Concentrated domain juice favors tech agencies.

Rank#277 / 310

LDS2

AI Score1.5 ★

DR39

Link typeNofollow

PricingN/A

Full profile →

Productivity Directory

Delivering a nofollow backlink, DR40 Productivity Directory boosts generative search rank in generative AI engines. Priority submission for AI startup teams.

Rank#261 / 310

LDS2

AI Score4.7 ★

DR40

Link typeNofollow

PricingN/A

Full profile →

Also compare

Other Directory platforms.

Wellfound (AngelList)

List Bulb vs Wellfound (AngelList)

LDS 7.6

Startup Fame

List Bulb vs Startup Fame

List Bulb vs SoftwareWorld

LDS 7.2

TinyLaunch

List Bulb vs TinyLaunch

List Bulb profile Productivity Directory profile Full leaderboard Methodology

Scores are calculated using the FreeMalta Link Dilution Score (LDS) formula. Domain Rating data sourced from Ahrefs. AI citation status based on verified testing across ChatGPT, Perplexity, Claude and Google AI Overviews. Data updated periodically — always verify with current tools before making link building decisions.