Layer 1 · gdr-78e96780
sanleandro.k12.ca.us
Latin dominant · high lexical diversity · short-form declarative register · high clause nesting · broad topic range · strong uncommon edge signal
Schema: 28% US · LIVE Minted: 2026-05-15 Visit Source ↗ manifest.json ↗
Entity Identity gdr-78e96780 · minted 2026-05-15T23:30:56Z
◈ This record is claimable  ·  Verified entities are cited by AI systems
Claim Entity Profile →
US · Entity Record
sanleandro.k12.ca.us
JSON-LD ✓Root-LD ✗schema.org ✓
STATUS: LIVE SSL: VALID SECURITY: MODERATE FRESHNESS: CURRENT TLD EDGE: .us ↗
◈ Topology Position
Latin dominant · high lexical diversity · short-form declarative register · high clause nesting · broad topic range · strong uncommon edge signal
◈ Entity Topology Map
gdr-78e96780 · v1.0.0 · Law III+V+VI
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Latin dominant · high lexical diversity · short-form declarative register · high clause nesting · broad topic range · strong uncommon edge signal
Federation ID
gdr-78e96780
Slug
sanleandro-k12-ca-us
TLD
.us
Status Code
200
Response Time
4206ms
Interior Pages
0
Interior Words
0
Minted At
2026-05-15T23:30:56Z
Law I — Provenance · Law II — Temporal Attestation Visit sanleandro.k12.ca.us ↗
SEO Record extracted from https://www.sanleandro.k12.ca.us/
Title
Homepage - San Leandro Unified
H1
not detected
Meta Description
not detected
Canonical URL
https://www.slusd.us/
Language Attribute
en-US
Word Count
481
Open Graph Tags
og:locale: en_USog:type: websiteog:title: Homepage - San Leandro Unifiedog:url: https://www.slusd.us/og:site_name: San Leandro Unified
Twitter / X Tags
twitter:card: summary_large_image
H2 (1)
San Leandro
H2 (2)
Board of Education
H2 (3)
SLUSD at a Glance
H2 (4)
Administrative Services
Full Extracted Text Corpus 3,311 chars · 481 words · 0 pages · Law I
Everything sanleandro.k12.ca.us said about itself — extracted verbatim from 0 pages, 481 words total. No editorial layer. No inference. Law III — the text is the measurement. Meaning is the reader's. Minted: 2026-05-15T23:30:56Z
◈ Homepage — https://www.sanleandro.k12.ca.us/Skip to content San Leandro Unified School District Select Language Arabic Chinese (Simplified) Dutch English French German Italian Portuguese Russian Spanish Vietnamese Bengali Burmese Gujarati Hindi Khmer Korean Nepali Punjabi Urdu Tagalog Thai ABOUT STUDENTS & FAMILIES STAFF SCHOOLS SEARCH You Belong in SLUSD You Belong in SLUSD SEARCH NEWS CALENDARS ANNOUNCEMENTS LOCAL CONTROL ACCOUNTABILITY PLAN (LCAP) FEEDBACK MENTAL HEALTH RESOURCES SCHOOL LOOKUP ENROLLMENT WE'RE HIRING CONSTRUCTION CONTACT US PARENT PORTAL DISTRICT NEWS Press Release: San Leandro High School’s Tony Farley… Press Release May 4, 2026 San Leandro High School’s Tony Farley Named SLUSD Teacher of the Year Beloved teacher recognized for shaping student learning and life at SLHS for nearly three decades SAN LEANDRO, CA – San Leandro Unified Scho READ MORE » May 4, 2026 May/June District Update: Finishing the Year Strong SLUSD Update Finishing the Year Strong May 1, 2026 Pictured: San Leandro High School Cheer Team and multilingual students performing at the Celebrating Schools special board meeting. Dear San Leandro Unified Staff and Families, READ MORE » May 1, 2026 Press Release: San Leandro Unified Acquires Property… Press Release April 23, 2026 San Leandro Unified Acquires Property for Workforce Housing Initiative Planned 51-unit workforce apartment community will provide below-market housing for educators and school employees. San Leandro, CA—The READ MORE » April 23, 2026 CALENDAR & EVENTS May 10 – 16, 2026 today Tuesday May 12, 2026 5:30pm - 9:30pm SLUSD - Regular Board Meeting 6:00pm - 7:00pm SLUSD - Teen Art Showcase Reception Wednesday May 13, 2026 6:00pm - 8:00pm SLUSD Retirement Dinner Thursday May 14, 2026 2:30pm - 5:30pm SLUSD - Alameda County Public Health Department Vaccination Clinic 6:00pm - 7:30pm SLUSD - Elementary Open House Saturday May 16, 2026 1:00pm - 2:30pm SLUSD and Boys & Girls Clubs of San Leandro’s 3rd Annual Expanded Learning Enrichment Showcase 5:30pm - 7:00pm SLUSD and Boys & Girls Clubs of San Leandro’s 3rd Annual Expanded Learning Enrichment Showcase   Add to your Google Calendar ANNOUNCEMENTS Summer Learning Opportunities Programs are available for students in grades K–12 and include enrichment camps, academic support, credit recovery, internships, and specialized programs for English learners and students with IEPs. Support San Leandro Unified Schools Partner with the San Leandro Education Foundation (SLED) to help every school in our community thrive. Resources for Immigrant Students and Families San Leandro Unified School District is committed to ensuring that all students and families, regardless of immigration status, feel safe, supported, and welcome in our schools. We provide resources to assist with legal services, community support, and educational rights. Student/Parent/Legal Guardian Handbook Find all the information you need including policies related to hate violence, bullying, harassment, discrimination, suicide prevention, and more! School Board Meeting Agendas Find meeting agendas and board policies here. Facebook Feed San Leandro USD 2600 Teagarden St, San Leandro, CA 94577 Phone: 510-667-3500 | Fax: 510-667-6234 Email: [email protected]  Facebook-f Linkedin Admin Access ×
◈ Crawled Pages — Provenance Chain
Law I — Provenance · Law III — Reverse Ontology · source: https://www.sanleandro.k12.ca.us/ Visit Source ↗
Root-LD — Traveling Context Pod v1.0 · gdr-78e96780 · three layers
35
Graph Edges
481
Tokens Measured
0.6133
Type-Token Ratio
1
Schema Blocks
28%
Schema Coverage
Root-LD is the traveling context pod for this entity — permanent, provenance-grounded. The head <script> block is machine-readable. This section shows the same data to humans. We show the work in both spaces.
Layer 1 — Anchor · Immutable after mint. UUID, federation_id, content hash, timestamps. A new crawl appends to recursive — the anchor is never touched. Law I — Provenance.
rld:anchor — gdr-78e96780
{
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  "source_verified": true,
  "generation_method": "crawl_extract_v1",
  "spec_version": "1.0",
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  "minted_at": "2026-05-15T23:30:56.959517+00:00"
}
Layer 2 — Body · Complete measurement snapshot frozen at mint. Identity, SEO, schema graph, six-layer topology fingerprint, ratio signals, navigation. Law II — Temporal Attestation.
rld:body — sanleandro.k12.ca.us
{
  "domain": "sanleandro.k12.ca.us",
  "canonical_url": "https://www.sanleandro.k12.ca.us/",
  "tld": "us",
  "slug": "sanleandro-k12-ca-us",
  "status_code": 200,
  "redirect_chain": [],
  "response_time_ms": 4206,
  "ssl_valid": true,
  "server_header": "nginx/1.18.0 (Ubuntu)",
  "title": "Homepage - San Leandro Unified",
  "h1": "",
  "meta_description": "",
  "lang_declared": "en-US",
  "schema_types": [
    "WebPage",
    "ReadAction",
    "BreadcrumbList",
    "ListItem",
    "WebSite",
    "SearchAction",
    "EntryPoint",
    "PropertyValueSpecification",
    "Organization",
    "ImageObject"
  ],
  "schema_score": 0.278,
  "schema_prop_count": 24,
  "schema_gap_list": [
    "significantLink",
    "mainContentOfPage",
    "reviewedBy",
    "speakable",
    "lastReviewed",
    "specialty",
    "relatedLink",
    "primaryImageOfPage",
    "funding",
    "provider",
    "genre",
    "wordCount",
    "accessModeSufficient",
    "acquireLicensePage",
    "temporalCoverage",
    "thumbnail",
    "thumbnailUrl",
    "commentCount",
    "displayLocation",
    "archivedAt"
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  "top_semantic_words": [
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    "school",
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    "english",
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    "housing",
    "calendar",
    "boys"
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    "self_declaration_coherence": 1.0,
    "schema_to_navigation_alignment": 0.0,
    "javascript_surface_ratio": 0.0,
    "url_depth_distribution": {
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      "depth_1": 0,
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      "depth_3plus": 0
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  },
  "semantic_html_ratio": 0.0,
  "javascript_surface_ratio": 0.0,
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  "robots_complexity_score": 0,
  "ariadne_blocked": false,
  "security_label": "MODERATE",
  "https_enforced": true,
  "freshness_label": "CURRENT",
  "tld_starjet_url": "https://globaldataregistry.com/registry/tld/ledger/us",
  "schema_starjet_urls": [
    "https://globaldataregistry.com/registry/schema/ledger/webpage",
    "https://globaldataregistry.com/registry/schema/ledger/readaction",
    "https://globaldataregistry.com/registry/schema/ledger/breadcrumblist",
    "https://globaldataregistry.com/registry/schema/ledger/listitem",
    "https://globaldataregistry.com/registry/schema/ledger/website",
    "https://globaldataregistry.com/registry/schema/ledger/searchaction",
    "https://globaldataregistry.com/registry/schema/ledger/entrypoint",
    "https://globaldataregistry.com/registry/schema/ledger/propertyvaluespecification",
    "https://globaldataregistry.com/registry/schema/ledger/organization",
    "https://globaldataregistry.com/registry/schema/ledger/imageobject"
  ],
  "native_text_sample": "Skip to content\nSan Leandro\nUnified School District\nSelect Language\nArabic\nChinese (Simplified)\nDutch\nEnglish\nFrench\nGerman\nItalian\nPortuguese\nRussian\nSpanish\nVietnamese\nBengali\nBurmese\nGujarati\nHindi\nKhmer\nKorean\nNepali\nPunjabi\nUrdu\nTagalog\nThai\nABOUT\n \nSTUDENTS & FAMILIES\n \nSTAFF\n \nSCHOOLS\n \nSEARCH\nYou Belong in SLUSD\nYou Belong in SLUSD\nSEARCH\nNEWS\nCALENDARS\nANNOUNCEMENTS\nLOCAL CONTROL ACCOUNTABILITY PLAN (LCAP)\nFEEDBACK\nMENTAL HEALTH RESOURCES\nSCHOOL LOOKUP\nENROLLMENT\nWE'RE HIRING\nCONSTRUCTI",
  "topology_fingerprint_version": "1.0.0"
}
Layer 3 — Recursive · Empty at mint. Grows forever through accumulated corpus passes. Common edges (Law V), uncommon edges (Law VI), topology cluster scores. The graph builds itself. Law VII — Torus.
rld:recursive — edge_count=0
{
  "edges": [],
  "appended_at": [],
  "edge_count": 0
}
Root-LD v1.0 · root-ld.org · Law I+II+VII root-ld.org ↗
Schema.org Intelligence scored · graph traversal · Law VI negative space
28% coverage · 10 types · 24 props · 55 gaps · click to expand
28%
Schema Utilization Score
PARTIAL COVERAGE — GAPS IDENTIFIED
schema.org v2.0.0 · 24 props extracted · 55 gaps · https://www.sanleandro.k12.ca.us/
CreativeWorkWebPageReadActionBreadcrumbListListItemWebSite
◈ Schema Graph — Three-Direction Traversal
Declared: WebPage · ReadAction · BreadcrumbList · ListItem · WebSite · SearchAction · EntryPoint · PropertyValueSpecification · Organization · ImageObject
✓ Implemented
urlownhttps://www.slusd.us/
nameownHomepage - San Leandro Unified
isPartOfownhttps://www.slusd.us/#website
aboutownhttps://www.slusd.us/#organization
datePublishedown2020-02-14T15:52:16+00:00
dateModifiedown2023-11-15T17:43:05+00:00
breadcrumbownhttps://www.slusd.us/#breadcrumb
inLanguageownen-US
potentialActionown[ReadAction]
targetownhttps://www.slusd.us/
itemListElementownHome
positionown1
descriptionownTradition and Innovation
publisherownhttps://www.slusd.us/#organization
query-inputown[PropertyValueSpecification]
urlTemplateownhttps://www.slusd.us/?s={search_term_string}
valueRequiredownTRUE
valueNameownsearch_term_string
logoownhttps://www.slusd.us/#/schema/logo/image/
imageownhttps://www.slusd.us/#/schema/logo/image/
contentUrlownhttps://www.slusd.us/wp-content/uploads/2020/06/cropped-slusd-favicon.png
widthown512
heightown512
captionownSan Leandro Unified
✗ Not Implemented / Gap
geogap
identifiergap
sameAsgap
contactPointgap
emailgap
hasOfferCataloggap
alternateNamegap
legalNamegap
numberOfEmployeesgap
keywordsgap
telephonegap
openingHoursgap
knowsAboutgap
areaServedgap
addressgap
priceRangegap
slogangap
aggregateRatinggap
foundingDategap
significantLinkgap
mainContentOfPagegap
reviewedBygap
speakablegap
lastReviewedgap
specialtygap
relatedLinkgap
primaryImageOfPagegap
fundinggap
providergap
genregap
wordCountgap
accessModeSufficientgap
acquireLicensePagegap
temporalCoveragegap
thumbnailgap
thumbnailUrlgap
commentCountgap
displayLocationgap
archivedAtgap
CreativeWorkancestor +1schema.org/CreativeWork ↗7/111 (6%)
The most generic kind of creative work, including books, movies, photographs, software programs, etc.
publisherdatePublishedinLanguageaboutpositionisPartOfdateModified
fundingprovidergenrewordCountaccessModeSufficientacquireLicensePagetemporalCoveragethumbnailthumbnailUrlcommentCount
Thingancestor +2schema.org/Thing ↗5/13 (38%)
The most generic type of item.
namepotentialActiondescriptionurlimage
sameAsadditionalTypeidentifierownersubjectOfmainEntityOfPagealternateNamedisambiguatingDescription
SoftwareApplicationsibling via CreativeWorkschema.org/SoftwareApplication ↗23 exclusive
A software application.
fileSizecountriesSupportedfeatureListprocessorRequirementsstorageRequirementsreleaseNotessoftwareRequirementsoperatingSystem
MediaObjectsibling via CreativeWorkschema.org/MediaObject ↗18 exclusive
A media object, such as an image, video, audio, or text object embedded in a web page or a downloadable dataset i.e. DataDownload. Note that a creative work may
durationassociatedArticleheightstartTimeplayerTypesha256uploadDateineligibleRegion
VisualArtworksibling via CreativeWorkschema.org/VisualArtwork ↗13 exclusive
A work of art that is primarily visual in character.
weightheightcoloristartworkSurfaceartistartformdepthartEdition
CreativeWorkSeasonsibling via CreativeWorkschema.org/CreativeWorkSeason ↗10 exclusive
A media season, e.g. TV, radio, video game etc.
endDateseasonNumberactorepisodestartDatetrailernumberOfEpisodespartOfSeries
Coursesibling via CreativeWorkschema.org/Course ↗10 exclusive
A description of an educational course which may be offered as distinct instances which take place at different times or take place at different locations, or b
numberOfCreditssyllabusSectionseducationalCredentialAwardedhasCourseInstancetotalHistoricalEnrollmentfinancialAidEligiblecoursePrerequisitesoccupationalCredentialAwarded
MusicCompositionsibling via CreativeWorkschema.org/MusicComposition ↗10 exclusive
A musical composition.
recordedAsfirstPerformancelyricsmusicArrangementlyricistcomposeriswcCodemusicCompositionForm
TVSeriessibling via CreativeWorkschema.org/TVSeries ↗10 exclusive
CreativeWorkSeries dedicated to TV broadcast and associated online delivery.
containsSeasonmusicByactornumberOfSeasonsepisodetrailertitleEIDRnumberOfEpisodes
Reviewsibling via CreativeWorkschema.org/Review ↗9 exclusive
A review of an item - for example, of a restaurant, movie, or store.
itemReviewedassociatedClaimReviewpositiveNotesreviewAspectnegativeNotesassociatedMediaReviewreviewRatingassociatedReview
Clipsibling via CreativeWorkschema.org/Clip ↗9 exclusive
A short TV or radio program or a segment/part of a program.
endOffsetmusicBypartOfSeasonclipNumberactorpartOfSeriespartOfEpisodestartOffset
Episodesibling via CreativeWorkschema.org/Episode ↗9 exclusive
A media episode (e.g. TV, radio, video game) which can be part of a series or season.
durationmusicBypartOfSeasonactortrailerepisodeNumberpartOfSeriesproductionCompany
Messagesibling via CreativeWorkschema.org/Message ↗9 exclusive
A single message from a sender to one or more organizations or people.
toRecipientccRecipientdateReceivedrecipientdateReaddateSentbccRecipientmessageAttachment
HowTosibling via CreativeWorkschema.org/HowTo ↗8 exclusive
Instructions that explain how to achieve a result by performing a sequence of steps.
prepTimetoolstepyieldsupplyestimatedCosttotalTimeperformTime
Moviesibling via CreativeWorkschema.org/Movie ↗8 exclusive
A movie.
durationmusicByactortrailertitleEIDRsubtitleLanguageproductionCompanydirector
ExercisePlansibling via CreativeWorkschema.org/ExercisePlan ↗8 exclusive
Fitness-related activity designed for a specific health-related purpose, including defined exercise routines as well as activity prescribed by a clinician.
exerciseTypeworkloadintensityrepetitionsactivityFrequencyrestPeriodsadditionalVariableactivityDuration
HowToDirectionsibling via CreativeWorkschema.org/HowToDirection ↗8 exclusive
A direction indicating a single action to do in the instructions for how to achieve a result.
duringMediaprepTimetoolsupplybeforeMediatotalTimeperformTimeafterMedia
RealEstateListingchild / upgradeschema.org/RealEstateListing ↗+2 props
A [[RealEstateListing]] is a listing that describes one or more real-estate [[Offer]]s (whose [[businessFunction]] is typically to lease out, or to sell). The
datePostedleaseLength
MedicalWebPagechild / upgradeschema.org/MedicalWebPage ↗+1 props
A web page that provides medical information.
medicalAudience
QAPagechild / upgradeschema.org/QAPage ↗+0 props
A QAPage is a WebPage focussed on a specific Question and its Answer(s), e.g. in a question answering site or documenting Frequently Asked Questions (FAQs).
ContactPagechild / upgradeschema.org/ContactPage ↗+0 props
Web page type: Contact page.
AboutPagechild / upgradeschema.org/AboutPage ↗+0 props
Web page type: About page.
ProfilePagechild / upgradeschema.org/ProfilePage ↗+0 props
Web page type: Profile page.
CollectionPagechild / upgradeschema.org/CollectionPage ↗+0 props
Web page type: Collection page.
ItemPagechild / upgradeschema.org/ItemPage ↗+0 props
A page devoted to a single item, such as a particular product or hotel.
CheckoutPagechild / upgradeschema.org/CheckoutPage ↗+0 props
Web page type: Checkout page.
SearchResultsPagechild / upgradeschema.org/SearchResultsPage ↗+0 props
Web page type: Search results page.
FAQPagechild / upgradeschema.org/FAQPage ↗+0 props
A [[FAQPage]] is a [[WebPage]] presenting one or more "[Frequently asked questions](https://en.wikipedia.org/wiki/FAQ)" (see also [[QAPage]]).
◈ Structural Negative Type Space — Constitutional Law VI
◈ Action Branch

No structural connection to the Action branch. Graph position measurement. schema.org/Action ↗ · Law III — meaning is yours.

◈ BioChemEntity Branch

No structural connection to the BioChemEntity branch. Graph position measurement. schema.org/BioChemEntity ↗ · Law III — meaning is yours.

◈ Event Branch

No structural connection to the Event branch. Graph position measurement. schema.org/Event ↗ · Law III — meaning is yours.

◈ Intangible Branch

No structural connection to the Intangible branch. Graph position measurement. schema.org/Intangible ↗ · Law III — meaning is yours.

◈ MedicalEntity Branch

No structural connection to the MedicalEntity branch. Graph position measurement. schema.org/MedicalEntity ↗ · Law III — meaning is yours.

◈ Organization Branch

No structural connection to the Organization branch. Graph position measurement. schema.org/Organization ↗ · Law III — meaning is yours.

◈ Person Branch

No structural connection to the Person branch. Graph position measurement. schema.org/Person ↗ · Law III — meaning is yours.

◈ Place Branch

No structural connection to the Place branch. Graph position measurement. schema.org/Place ↗ · Law III — meaning is yours.

◈ Product Branch

No structural connection to the Product branch. Graph position measurement. schema.org/Product ↗ · Law III — meaning is yours.

◈ Taxon Branch

No structural connection to the Taxon branch. Graph position measurement. schema.org/Taxon ↗ · Law III — meaning is yours.

◈ Gap List (55 properties unmapped)
significantLinkmainContentOfPagereviewedByspeakablelastReviewedspecialtyrelatedLinkprimaryImageOfPagefundingprovidergenrewordCountaccessModeSufficientacquireLicensePagetemporalCoveragethumbnailthumbnailUrlcommentCountdisplayLocationarchivedAtdigitalSourceTypeassesseslicensekeywordshasPartfunderaccessModeaggregateRatingmaterialaccessibilityControl
+25 more gaps not shown
◈ Source Schema.org — Raw Extraction (1 blocks)
Block 1 · @type: unknown
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "WebPage",
      "@id": "https://www.slusd.us/",
      "url": "https://www.slusd.us/",
      "name": "Homepage - San Leandro Unified",
      "isPartOf": {
        "@id": "https://www.slusd.us/#website"
      },
      "about": {
        "@id": "https://www.slusd.us/#organization"
      },
      "datePublished": "2020-02-14T15:52:16+00:00",
      "dateModified": "2023-11-15T17:43:05+00:00",
      "breadcrumb": {
        "@id": "https://www.slusd.us/#breadcrumb"
      },
      "inLanguage": "en-US",
      "potentialAction": [
        {
          "@type": "ReadAction",
          "target": [
            "https://www.slusd.us/"
          ]
        }
      ]
    },
    {
      "@type": "BreadcrumbList",
      "@id": "https://www.slusd.us/#breadcrumb",
      "itemListElement": [
        {
          "@type": "ListItem",
          "position": 1,
          "name": "Home"
        }
      ]
    },
    {
      "@type": "WebSite",
      "@id": "https://www.slusd.us/#website",
      "url": "https://www.slusd.us/",
      "name": "San Leandro Unified",
      "description": "Tradition and Innovation",
      "publisher": {
        "@id": "https://www.slusd.us/#organization"
      },
      "potentialAction": [
        {
          "@type": "SearchAction",
          "target": {
            "@type": "EntryPoint",
            "urlTemplate": "https://www.slusd.us/?s={search_term_string}"
          },
          "query-input": {
            "@type": "PropertyValueSpecification",
            "valueRequired": true,
            "valueName": "search_term_string"
          }
        }
      ],
      "inLanguage": "en-US"
    },
    {
      "@type": "Organization",
      "@id": "https://www.slusd.us/#organization",
      "name": "San Leandro Unified",
      "url": "https://www.slusd.us/",
      "logo": {
        "@type": "ImageObject",
        "inLanguage": "en-US",
        "@id": "https://www.slusd.us/#/schema/logo/image/",
        "url": "https://www.slusd.us/wp-content/uploads/2020/06/cropped-slusd-favicon.png",
        "contentUrl": "https://www.slusd.us/wp-content/uploads/2020/06/cropped-slusd-favicon.png",
        "width": 512,
        "height": 512,
        "caption": "San Leandro Unified"
      },
      "image": {
        "@id": "https://www.slusd.us/#/schema/logo/image/"
      }
    }
  ]
}
◈ Source: https://www.sanleandro.k12.ca.us/ · Law I — Provenance
schema.org v2.0.0 · source: https://www.sanleandro.k12.ca.us/ schema.org/WebPage ↗
Semantic Words 40 words · frequency ranked · Law III
40 words · top 5: san · leandro · slusd · school · unified · click to expand
Top 40 words by frequency from https://www.sanleandro.k12.ca.us/ + 0 interior pages (0 words total). Stop-words stripped. Ranked by repetition.
#1san17x · 5.48%
#2leandro17x · 5.48%
#3slusd12x · 3.87%
#4school9x · 2.9%
#5unified7x · 2.26%
#6students6x · 1.94%
#7district4x · 1.29%
#8families4x · 1.29%
#9schools4x · 1.29%
#10press4x · 1.29%
#11release4x · 1.29%
#12learning4x · 1.29%
#13board4x · 1.29%
#14meeting4x · 1.29%
#15resources3x · 0.97%
#16community3x · 0.97%
#17showcase3x · 0.97%
#18enrichment3x · 0.97%
#19support3x · 0.97%
#20english2x · 0.65%
#21staff2x · 0.65%
#22belong2x · 0.65%
#23news2x · 0.65%
#24announcements2x · 0.65%
#25health2x · 0.65%
#26parent2x · 0.65%
#27tony2x · 0.65%
#28farley2x · 0.65%
#29teacher2x · 0.65%
#30student2x · 0.65%
#31update2x · 0.65%
#32finishing2x · 0.65%
#33strong2x · 0.65%
#34acquires2x · 0.65%
#35property2x · 0.65%
#36april2x · 0.65%
#37workforce2x · 0.65%
#38housing2x · 0.65%
#39calendar2x · 0.65%
#40boys2x · 0.65%
Law III — frequency measured, meaning is the reader's · source: https://www.sanleandro.k12.ca.us/
Text Topology Fingerprint v1.0.0 · short · 3,311 chars · Law III
Six-layer pre-linguistic shape measurement. Deterministic. Same input, same output, always. Hash: e77d7c80c0237bff079f06f997a81b40...
◈ Signal Matrix
0.613
TTR
0.464
HAPAX
0.536
REP
0.254
BIGRAM
0.756
H2T
0.538
CPRT
1.230
SKEW
-0.315
KURT
3.875
C/P
1.618
PENT
0.973
S1P
0.005
NASC
TTR=type-token ratio · HAPAX=hapax ratio · REP=repetition score · BIGRAM=bigram repetition · H2T=hapax-to-type · CPRT=capital token ratio · SKEW=sentence skewness · KURT=sentence kurtosis · C/P=comma-period ratio · PENT=punct entropy · S1P=single-sent para ratio · NASC=non-ASCII ratio
◈ Topology Position
Latin dominant · high lexical diversity · short-form declarative register · high clause nesting · broad topic range · strong uncommon edge signal
◈ Six Measurement Layers
Layer 1 — Character
0.0048
Non-ASCII Ratio
0.0 = Latin-dominant · 1.0 = fully non-Latin script
Layer 1 — Character
3.5942
Character Entropy
Shannon entropy of character distribution.
Layer 1 — Character
'e' (238x)
Most Frequent
Highest-frequency character. Law V — common edge.
Layer 2 — Token
0.6133
Type-Token Ratio
Unique tokens / total tokens. Lexical diversity signal.
Layer 2 — Token
0.4636
Hapax Ratio
Tokens appearing exactly once. Law VI — uncommon edge.
Layer 6 — Document
0.7559
Hapax to Type
Hapax count / unique token count.
Layer 3 — Punctuation
3.8750
Comma/Period Ratio
Clause complexity per sentence.
Layer 3 — Punctuation
1.6178
Punct Entropy
Shannon entropy across punctuation types.
Layer 4 — Sentence
9
Sentence Count
Total detected sentences across all crawled pages.
Layer 4 — Sentence
1.2300
Skewness
Positive = long-tail. Negative = conversational.
Layer 5 — Paragraph
0.9730
Single Sent Ratio
High = web copy. Low = academic prose.
Layer 6 — Document
0.5364
Repetition Score
Tokens appearing more than once / total.
◈ Token Length Distribution
1-3
26%
4-6
34%
7-10
36%
11-15
4%
16-20
0%
21+
0%
◈ Density Gradient — TTR per Document Tenth
Front-loaded = abstract/preamble · Flat = consistent prose · Back-loaded = building complexity
◈ Lexical Richness Curve — Rolling Window TTR
0.620.94
Window=50 tokens · Step=25 · 18 data points
topology_fingerprint.py v1.0.0 · sha256: e77d7c80c0237bff... · Law III + Law VI
Ratio Signals 8 deterministic measurements · the gap is the signal
Eight deterministic measurements. Law I: every value traces to its source stage.
schema density
0.6000
Schema props extracted / top semantic words.
nav ratio
0.0000
Nav URLs / total internal URLs.
content to structure ratio
0.0014
Total words / raw HTML bytes. Content density.
external tld diversity
4
Unique TLD count in outbound links.
self declaration coherence
1.0000
Fuzzy overlap across title / H1 / meta / schema name.
schema to nav alignment
0.0000
Schema type tokens vs nav link text overlap.
javascript surface ratio
0.0000
Fraction of interior pages JS-gated.
URL Depth Distribution
depth_0: 0 · depth_1: 0 · depth_2: 0 · depth_3plus: 0
Internal URLs by path depth. Depth 0 = root.
Tech Stack · Security · Freshness SecurityLabel.MODERATE · FreshnessLabel.CURRENT
Sitemap: ✗Robots.txt: ✗Schema.org: ✓Open Graph: ✓Canonical: ✓HTTPS: ✓HSTS: ✗CSP: ✓
Security
SecurityLabel.MODERATE
Freshness
FreshnessLabel.CURRENT
Server
nginx/1.18.0 (Ubuntu)
cmsWordPress
web_servernginx/1.18.0 (Ubuntu)
analytics['Google Analytics', 'Google Tag Manager']
Ledger Appends 11 ledgers · graph edge traversal · Law V+VII
Build: national-transit-v1.0.0 Spec: Root-LD v1.0 Status: LIVE Minted: 2026-05-15
sanleandro.k12.ca.us · gdr-78e96780
sanleandro.k12.ca.us is recorded in the Global Data Registry — open provenance infrastructure for the machine-readable web.
View the Registry →