Sameness Index · 3 sites compared

Your page scores 56 out of 100 for sameness against the 2 competitors you named.

https://www.harmonic.security/

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We couldn’t read prompt.security. It is excluded from every figure below, so the set is 2 competitors, not 3.

01

Your verdict

56
Sameness · vs 2 named
How is this calculated?

Your page is half shared.

About half of what your page says, Onyx also says. You're less same than 194 of the 366 SaaS sites scored (SaaS avg 56).

No category benchmark matched this set.
Sameness Index on a 0 to 100 scale, from distinctive at 0 to interchangeable at 100. This page scores 56. Onyx scores 68. Island scores 70. The SaaS avg is 56.

Each named site is scored the same way, against the other 2 in this set, so its tick means the same as your marker. The dashed line is the frozen benchmark average.

  1. Right on the average

    The average SaaS site scores 56; you scored 56.

    You are right on the average SaaS site.

  2. Closest overlap: Onyx

    Of the 2 sites you named, Onyx echoes the most of what your page says: 62% of it, weighted by placement. Scored the same way you were, against the rest of the set, Onyx's own Sameness Index is 68. Those are different measures: the first is overlap with your page, the second is how same Onyx's whole page is.

    Onyx is the competitor you sound most like.

  3. Room to own more

    42% of your claim space is ownable: unique, relevant, and hard to copy. 6 of those claims sit in body copy, where few readers reach them.

    42% is ownable, and 6 buried opportunities could help you stand out more.

Do this first

Three changes worth testing first.

Chosen by rule from the comparison with Onyx and Island: the shared claim taking your most prominent space, then the claims only you make that sit too low on the page to be read. Each one links to its claim card.

  1. “Understand AI wherever your workforce runs it”

    Onyx and Island all say it too. Buyers may still need it, but shared ground cannot carry your hero — move it lower and give that space to something only you can say.

    Table stakes
    Most of the set says this too.
  2. “You can block in real time, warn the employee with context, or log silently for security team review”

    Nobody in the set says this. It sits in body copy, where few readers reach it — worth testing higher up the page; only buyers can tell you whether it lands.

    Surface
    Yours alone. Test it higher up.
  3. “Roll out through Intune, JAMF, Kandji, or Group Policy”

    A claim that is yours alone, filed in body copy. Try it where it will be read before the shared claims are, and let buyers tell you if it moves them.

    Surface
    Yours alone. Test it higher up.

Try these changes, then test them with real buyers.

This measures overlap. Whether buyers notice is a different question, and only they can answer it.

Test it with real buyers
02

What you can own

Claims only you make, that buyers weigh, and that competitors can’t easily copy.

42% of your page’s claim space is yours to keep.

42%Yours to keep22%Unique but weak36%A competitor says it too
Why this is not 100 minus the Sameness Index

The index is a weighted composite across six categories, including page structure and visuals. This bar is measured on your claims alone, weighted by where each one sits on the page. Different denominators, so the two never add to 100 and are not meant to.

Already leading with · 6

  1. Classifies AI usage by business use case/intent

    “Collected at the source. Categorized by business use case. Acted on in real time, so security decisions follow the work instead of blocking it.”

  2. Coverage across all vendors including long tail

    “We see the full stack across vendors, including the long tail and the agentic surfaces, and we provide context aware guardrails for employees and their agents”

  3. Covers AI activity that never crosses the network

    “SASE inspects network traffic to known AI domains, but misses everything that does not cross the network: Claude Desktop, Cursor, local MCP servers, embedded…”

  4. Enforces inline rather than only monitoring

    “That is what lets us govern inline, where DLP can only monitor”

  5. Governs at the MCP and tool-execution layer

    “We govern at the MCP layer and at the tool surface, which is where agentic workflows execute”

  6. Semantic classification beats pattern-matching DLP

    “Pattern-matching DLP cannot tell a draft email from a deal memo because prompts are unstructured and contextual”

Buried in body copy · 6

  1. Choice of block, warn, or silent log responses

    “You can block in real time, warn the employee with context, or log silently for security team review”

  2. Full AI tool inventory on day one

    “On day one you get a full inventory of AI tools in use across your organization”

  3. Specific coverage of ChatGPT/Codex surfaces and OpenAI API calls

    “We provide discovery, monitoring, and inline guardrails across ChatGPT and Codex on the web, on the desktop, and within command line interfaces”

  4. Deploys via standard MDM/device management tools

    “Roll out through Intune, JAMF, Kandji, or Group Policy”

  5. Supports all browsers and major operating systems

    “The browser extension covers all browsers and MCP gateway runs on Windows, macOS, and Linux”

  6. EU data hosting/residency available

    “EU hosting is available on request”

03

Where you blend in

Territory you spend prominent space on that the set also occupies. Not every line is one to delete — the question is whether it has earned the space, or whether something only you can say should be there instead.

  • Commodity · 100%Table stakesHero
    discovers and inventories all AI use across the org
    • “Understand AI wherever your workforce runs it”
    • “Collected at the source. Categorized by business use case. Acted on in real time, so security decisions follow the work instead of blocking it.”
    • “We see the full stack across vendors, including the long tail and the agentic surfaces, and we provide context aware guardrails for employees and their agents”

    You say this 3 different ways.

    Onyx and Island all cover this territory. Buyers may need to hear it, but in your hero it spends the first impression on shared ground.

    They say
    • Onyx“AI agents are everywhere. Find and control them across your environment”
    • Island“Get full visibility into org-wide work activity”
  • Commodity · 100%KeepHero
    positioned as the control plane for enterprise AI
    • “The only platform that classifies every AI task, discovers why it is used, and then controls it in real time.”

    Onyx and Island all say what they are and who they are for, as every page in a category must. Keep it — it is orientation, not differentiation.

    They say
    • Onyx“Onyx is the secure control plane for AI agents and models”
    • Island“The control plane for your agentic enterprise”
  • Commodity · 100%Table stakesSection
    enforces policy inline, not just monitoring
    • “That is what lets us govern inline, where DLP can only monitor”
    • “We govern at the MCP layer and at the tool surface, which is where agentic workflows execute”

    You say this 2 different ways.

    Common ground with Onyx and Island. Say it if buyers need it — lower on the page, where it is not the thing they read first. Nobody else uses your exact words, but everyone is on the ground. Nobody else makes this exact claim, but everyone occupies the territory — lead with the specific, not the generic.

    They say
    • Onyx“Sanction approved tools and control MCP server access”
    • Island“Stop insider threats and errors by layering control over admin interactions; no source code required”
  • Commodity · 100%Table stakesSection
    named customers and testimonials as proof
    • “Works with Advisor360, Anthropic, Apex, Cisco, HIG Capital, Hyperion, Monolithic Power Systems, NPL”

    Onyx and Island make the same claim. It cannot set you apart, so it should not carry the section.

    They say
    • Onyx“Securing AI by the world's top providers”
    • Island“The world's leading enterprises run on Island”
  • Commodity · 100%Table stakesSection
    smarter detection than legacy approaches
    • “Pattern-matching DLP cannot tell a draft email from a deal memo because prompts are unstructured and contextual”

    A buyer comparing tabs sees this on Onyx and Island. Yours earns nothing by repeating it up top; it can live lower down. Nobody else uses your exact words, but everyone is on the ground. Nobody else makes this exact claim, but everyone occupies the territory — lead with the specific, not the generic.

    They say
    • Onyx“Conduct anomaly detection and behavioral baselining of AI systems”
    • Island“Stop phishing attempts, malware, and data leakage automatically”
  • Contested · 50%SharpenSection
    covers traffic legacy network tools miss
    • “SASE inspects network traffic to known AI domains, but misses everything that does not cross the network: Claude Desktop, Cursor, local MCP servers, embedded…”

    Island is on this territory too (50% of the set). It narrows the field without winning it — make it specific enough that it cannot be said of them. Nobody else uses your exact words, but everyone is on the ground. Nobody else makes this exact claim, but everyone occupies the territory — lead with the specific, not the generic.

    They say
    • Island“The Enterprise Network: Welcome to work without detours - SASE reimagined for the AI era with Perfect Packet architecture”
  • Contested · 50%SharpenSection
    deploys fast with existing tooling, no infra change
    • “Deployment takes minutes”

    Shared with Island. Sharpen it to the thing only you do here, or it reads as a claim any of you could make. Nobody else uses your exact words, but everyone is on the ground. Nobody else makes this exact claim, but everyone occupies the territory — lead with the specific, not the generic.

    They say
    • Island“Onboard third-party contractors in minutes, not months”
  • Contested · 50%SharpenSection
    helps meet AI regulations with audit evidence
    • “Helps with EU AI Act, GDPR, or other regulations”

    Onyx is on this territory too (50% of the set). It narrows the field without winning it — make it specific enough that it cannot be said of them.

    They say
    • Onyx“AI Governance: Satisfy AI security standards and regulatory requirements with opt-in coverage and define specific policy controls in natural language”
04

Claim-by-claim evidence

Every claim on your page (27)
What the columns mean
Claim
The grouped claim, then your exact line beneath it.
Type
What kind of claim it is: category, segment, outcome, capability, quality or proof.
Placement
Where it sits on your page: hero, section or body copy. Hero claims weigh most in the index.
Same claim
Share of the competitors making this exact claim. Drives ownership and ownable share.
Same territory
Share of the competitors with any claim in the same buyer-facing territory. This is what the index is scored on.
Sayability
Whether a competitor could truthfully make the same claim: anyone could, copyable with effort, or hard to copy.
Relevant
Whether buyers decide on this. A unique claim nobody buys on is not ownable.
Ownership
Commodity: 60% or more of the set says it. Contested: 20–59%. Unique: under 20%, owned when it is also hard to copy.

Tap a column to sort by it; tap again to reverse. Sorted by Same claim, highest first.

  • Positioned as the control plane for enterprise AI/agents
    “The only platform that classifies every AI task, discovers why it is used, and then controls it in real time.”
    categoryHerosame claim 100%same territory 100%Anyone could say it
    Commodity
    Also on Onyx, Island
  • Named enterprise customers as proof
    “Works with Advisor360, Anthropic, Apex, Cisco, HIG Capital, Hyperion, Monolithic Power Systems, NPL”
    proofSectionsame claim 100%same territory 100%Anyone could say itnot a buying criterion
    Commodity
    Also on Onyx, Island
  • Enables the business to innovate with AI at pace
    “By understanding user intent and data context in real time, Harmonic gives security leaders all they need to help their companies innovate at pace”
    outcomeBodysame claim 100%same territory 100%Anyone could say it
    Commodity
    Also on Onyx, Island
  • Discovers shadow and sanctioned AI across environments
    “Understand AI wherever your workforce runs it”
    capabilityHerosame claim 50%same territory 100%Copyable with effort
    Contested
    Also on Onyx
  • Helps meet AI and data regulations
    “Helps with EU AI Act, GDPR, or other regulations”
    outcomeSectionsame claim 50%same territory 50%Anyone could say it
    Contested
    Also on Onyx
  • Audit trail and evidence for compliance demonstration
    “Our data classification and logging give you the audit trail, the data residency controls, and the ability to demonstrate that AI use in your organization…”
    capabilityBodysame claim 50%same territory 50%Copyable with effort
    Contested
    Also on Onyx
  • Control-to-regulation mapping documentation available
    “Documentation mapping our controls to specific regulatory requirements is available on request”
    proofBodysame claim 50%same territory 50%Copyable with effortnot a buying criterion
    Contested
    Also on Onyx
  • Granular guardrails on actions inside sanctioned tools
    “Provides granular guardrails over actions taken within officially sanctioned tools”
    capabilityBodysame claim 50%same territory 100%Copyable with effort
    Contested
    Also on Onyx
  • Classifies AI usage by business use case/intent
    “Collected at the source. Categorized by business use case. Acted on in real time, so security decisions follow the work instead of blocking it.”
    capabilitySectionsame claim 0%same territory 100%Copyable with effort
    Unique and owned
  • Coverage across all vendors including long tail
    “We see the full stack across vendors, including the long tail and the agentic surfaces, and we provide context aware guardrails for employees and their agents”
    capabilitySectionsame claim 0%same territory 100%Copyable with effort
    Unique and owned
  • Covers AI activity that never crosses the network
    “SASE inspects network traffic to known AI domains, but misses everything that does not cross the network: Claude Desktop, Cursor, local MCP servers, embedded…”
    capabilitySectionsame claim 0%same territory 50%Copyable with effort
    Unique and owned
  • Deploys in minutes with no infrastructure changes
    “Deployment takes minutes”
    qualitySectionsame claim 0%same territory 50%Anyone could say it
    Unique for now
  • Enforces inline rather than only monitoring
    “That is what lets us govern inline, where DLP can only monitor”
    outcomeSectionsame claim 0%same territory 100%Copyable with effort
    Unique and owned
  • Governs at the MCP and tool-execution layer
    “We govern at the MCP layer and at the tool surface, which is where agentic workflows execute”
    capabilitySectionsame claim 0%same territory 100%Copyable with effort
    Unique and owned
  • Live interactive demo without sales contact
    “See the whole loop running live on your own AI traffic.”
    capabilitySectionsame claim 0%same territory 0%Anyone could say itnot a buying criterion
    Unique for now
  • Semantic classification beats pattern-matching DLP
    “Pattern-matching DLP cannot tell a draft email from a deal memo because prompts are unstructured and contextual”
    capabilitySectionsame claim 0%same territory 100%Copyable with effort
    Unique and owned
  • Blocking tools drives risky workarounds
    “When you block tools without a suitable alternative, employees will inevitably find ways to use them anyway, often via personal accounts that are even more…”
    outcomeBodysame claim 0%same territory 0%Anyone could say itnot a buying criterion
    Unique for now
  • Choice of block, warn, or silent log responses
    “You can block in real time, warn the employee with context, or log silently for security team review”
    capabilityBodysame claim 0%same territory 100%Copyable with effort
    Unique and owned
  • Customer configures policy; no imposed defaults
    “The governance layer is yours to configure; we do not impose defaults that shut down legitimate work”
    qualityBodysame claim 0%same territory 50%Anyone could say itnot a buying criterion
    Unique for now
  • Dataset is sanitized and frozengrouping uncertain
    “The dataset is sanitized and frozen”
    capabilityBodysame claim 0%same territory 0%Copyable with effortnot a buying criterion
    Unique and owned
  • Deploys via standard MDM/device management tools
    “Roll out through Intune, JAMF, Kandji, or Group Policy”
    capabilityBodysame claim 0%same territory 50%Copyable with effort
    Unique and owned
  • Employee privacy protections built into reporting
    “HR, Finance, Ops, and Founders are excluded from reporting by design”
    capabilityBodysame claim 0%same territory 0%Copyable with effortnot a buying criterion
    Unique and owned
  • EU data hosting/residency available
    “EU hosting is available on request”
    capabilityBodysame claim 0%same territory 0%Copyable with effort
    Unique and owned
  • Full AI tool inventory on day one
    “On day one you get a full inventory of AI tools in use across your organization”
    outcomeBodysame claim 0%same territory 100%Anyone could say it
    Unique for now
  • Policy applies to the action, not the person
    “Policy follows the action, not the person”
    qualityBodysame claim 0%same territory 50%Anyone could say itnot a buying criterion
    Unique for now
  • Specific coverage of ChatGPT/Codex surfaces and OpenAI API calls
    “We provide discovery, monitoring, and inline guardrails across ChatGPT and Codex on the web, on the desktop, and within command line interfaces”
    capabilityBodysame claim 0%same territory 100%Copyable with effort
    Unique and owned
  • Supports all browsers and major operating systems
    “The browser extension covers all browsers and MCP gateway runs on Windows, macOS, and Linux”
    capabilityBodysame claim 0%same territory 50%Copyable with effort
    Unique and owned
05

How this was calculated

Sameness measures how much your claims overlap with the sites compared. It does not measure message quality or whether buyers prefer you.

AI-analyzed: an AI read each page on its own and grouped the claims that say the same thing. No score here was written by a model — every number is computed from those groupings in our own code, with the weights below.

How the score is built
The six category scores, their weights, and what a high score in each one means
CategoryWeightYoursWhat a high score means
Messaging
Category framing, who it is for, and the outcome promised
30%82The most expensive kind of sameness. A buyer cannot tell what job you do that the others do not.
Claims
Attribute and benefit claims — speed, ease, quality, ROI
30%50Every shared claim is a line already read on another tab. Cut the ones nobody owns and spend the space on something they cannot.
Features
Capabilities and functions the page lists
15%72Expected in a mature category, and the least alarming of the six. Feature parity is normal; leading with it is the mistake.
Proof
The kinds of evidence offered: customer logos, numbers, testimonials, case studies, badges
10%37Same kinds of proof as everyone means the proof stops working as proof. It is scored on the kind of evidence, not on which customers are named.
Structure
Section order, navigation, CTA language and placement
10%0The generic SaaS template — hero, logos, three-feature grid, testimonial, CTA. Familiar is not the same as memorable.
Visual
Palette family, imagery style, layout patterns
5%46Weighted lowest on purpose: buyers rarely decide on this. Worth knowing, rarely worth fixing first.

Each site was read on its own first, with no knowledge of the others, so your page gets no benefit of the doubt a competitor’s does not. A category nothing could be measured for drops out and the rest are re-weighted, rather than counted as zero.

What we compared (3 pages read)
Your page
Harmonic Security
harmonic.security
Competitor
Onyx
onyx.security
Competitor
Island
island.io
Competitor
prompt.security
prompt.security

Couldn’t be read — excluded from every figure.

What it cannot tell you

The index can find where two pages converge. It cannot say whether a buyer would notice, or which of your reasons to buy actually land. A single check also moves several points between runs, so read the band and the ranking, not the last digit.

Your highest-impact changes

  1. 1
    Table stakesYour hero copy says “Understand AI wherever your workforce runs it”.

    Onyx and Island all say it too. Buyers may still need it, but shared ground cannot carry your hero — move it lower and give that space to something only you can say.

  2. 2
    Table stakesYour section copy says “Collected at the source. Categorized by business use case. Acted on in real time, so security decisions follo…”.

    Keep the fact, lose the position: onyx and Island all say it too, and your section is spending its first impression on the same territory as theirs.

  3. 3
    Table stakesYour section copy says “We see the full stack across vendors, including the long tail and the agentic surfaces, and we provide contex…”.

    This is the set's common ground — Onyx and Island all say it too. It will not set you apart wherever it sits, and in the section it costs you the one place a distinctive claim would be read.

  4. 4
    Table stakesYour section copy says “That is what lets us govern inline, where DLP can only monitor”.

    A buyer with three tabs open reads a version of this on every one of them. Say it further down for the readers who need it; the section should carry a claim they will only find here.

  5. 5
    Table stakesYour section copy says “We govern at the MCP layer and at the tool surface, which is where agentic workflows execute”.

    True of you and true of them: Onyx and Island all say it too. That is why it decides nothing, and why the section is the wrong place to spend it.

  6. 6
    Table stakesYour section copy says “Works with Advisor360, Anthropic, Apex, Cisco, HIG Capital, Hyperion, Monolithic Power Systems, NPL”.

    In the section: Onyx and Island all say it too. Buyers may still need it, but shared ground cannot carry your section — move it lower and give that space to something only you can say.

  7. 7
    Table stakesYour section copy says “Pattern-matching DLP cannot tell a draft email from a deal memo because prompts are unstructured and contextu…”.

    In the section: Onyx and Island all say it too. Buyers may still need it, but shared ground cannot carry your section — move it lower and give that space to something only you can say.

  8. 8
    Table stakesYour body copy says “By understanding user intent and data context in real time, Harmonic gives security leaders all they need to…”.

    In the body: True of you and true of them: Onyx and Island all say it too. That is why it decides nothing, and why the body is the wrong place to spend it.

  9. 9
    Surface“You can block in real time, warn the employee with context, or log silently for security team review” is yours alone, and buyers weigh it.

    Nobody in the set says this. It sits in body copy, where few readers reach it — worth testing higher up the page; only buyers can tell you whether it lands.

  10. 10
    Surface“Roll out through Intune, JAMF, Kandji, or Group Policy” is yours alone, and buyers weigh it.

    A claim that is yours alone, filed in body copy. Try it where it will be read before the shared claims are, and let buyers tell you if it moves them.

  11. 11
    Surface“EU hosting is available on request” is yours alone, and buyers weigh it.

    No competitor page makes this claim. Today it is in body copy; it is a candidate for the space the table-stakes lines are taking.

  12. 12
    Surface“We provide discovery, monitoring, and inline guardrails across ChatGPT and Codex on the web, on the desktop,…” is yours alone, and buyers weigh it.

    The rest of the set has nothing on this ground. Buried in body copy it does no work; higher up it is the one line a comparing buyer cannot find elsewhere.

  13. 13
    Surface“The browser extension covers all browsers and MCP gateway runs on Windows, macOS, and Linux” is yours alone, and buyers weigh it.

    Filed in body copy: Nobody in the set says this. It sits in body copy, where few readers reach it — worth testing higher up the page; only buyers can tell you whether it lands.

  14. 14
    Surface“On day one you get a full inventory of AI tools in use across your organization” is yours alone, and buyers weigh it.

    Filed in body copy: Nobody in the set says this. It sits in body copy, where few readers reach it — worth testing higher up the page; only buyers can tell you whether it lands.

The only way to know if it matters.

This report can tell you where your messaging overlaps. It cannot tell you whether a buyer would care, or which of your reasons to buy actually land. Put the page in front of real B2B buyers in your target market and ask them.

Test it with real buyers
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