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Site Information

sciad.com

Link authority for sciad.com (registrable domain: sciad.com) from the Common Crawl web graph: PageRank and harmonic centrality history since 2017, current scores, and the site's top backlink sources.

12Domain PageRank
10Host Backlinks
100Domain Backlinks
Link authority data (PageRank, harmonic centrality) and backlinks come from the Common Crawl web graph.
sciad_com.profile
Current Scores

Web-graph authority (0-100)

Domain scores measure sciad.com as a whole: every subdomain's links rolled up into one node of Common Crawl's domain-level web graph. Host scores measure the exact hostname sciad.com. WWW scores cover the www variant of that hostname, which the graph tracks as its own entry since January 2026 (before that, www and bare host were merged). A big gap between domain and host usually means the domain's authority lives on other subdomains. PageRank is link-endorsement authority: how much weight the sites linking here carry themselves. Harmonic centrality measures reach: how close this site sits to the rest of the web when following links, which favors broadly connected sites over ones boosted by a few heavy linkers. All are normalized 0 to 100 within each crawl snapshot; a dash means that series does not exist for this site.

12
Domain PageRank
7
Host PageRank
-
WWW PageRank
94
Domain Harmonic Centrality
93
Host Harmonic Centrality
-
WWW Harmonic Centrality
Site Intelligence

Homepage

What sciad.com presents on its own homepage: the page title, description, and the social share markup it publishes. Pulled from https://sciad.com.

TitleScience and Healthcare Marketing Communications Agency | Sciad
DescriptionSciad, a science communications agency providing PR, digital marketing and web design for life science, healthcare and engineering organisations worldwide.
OG TitleScience and Healthcare Marketing Communications Agency | Sciad
OG DescriptionSciad, a science communications agency providing PR, digital marketing and web design for life science, healthcare and engineering organisations worldwide.
OG Site NameSciad
Twitter Cardsummary_large_image
Site Intelligence

Social accounts and contact points

Where this site maintains a presence and every reachable route its homepage exposes: social accounts, contact pages, addresses, and content feeds.

X sciadcomms
Linkedin sciad-ltd (business)
Contact pages https://www.sciad.com/contact-us/
https://sciad.com/contact-us/
Emails hello@sciad.com
Phones +44(0)2034057892
Feeds https://www.sciad.com/feed/
https://www.sciad.com/comments/feed/
Site Intelligence

Structured data (JSON-LD)

The schema.org markup this homepage publishes: the machine-readable identity search engines and AI systems read. Types found: WebPage, ImageObject, BreadcrumbList, WebSite.

JSON-LD block (1,768 bytes)
{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.sciad.com\/","url":"https:\/\/www.sciad.com\/","name":"Science and Healthcare Marketing Communications Agency | Sciad","isPartOf":{"@id":"https:\/\/www.sciad.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.sciad.com\/#primaryimage"},"image":{"@id":"https:\/\/www.sciad.com\/#primaryimage"},"thumbnailUrl":"https:\/\/www.sciad.com\/wp-content\/uploads\/2023\/05\/sciad-homepage_hero_poster.png","datePublished":"2022-11-14T15:05:12+00:00","dateModified":"2026-07-15T09:48:30+00:00","description":"Sciad, a science communications agency providing PR, digital marketing and web design for life science, healthcare and engineering organisations worldwide.","breadcrumb":{"@id":"https:\/\/www.sciad.com\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.sciad.com\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.sciad.com\/#primaryimage","url":"https:\/\/www.sciad.com\/wp-content\/uploads\/2023\/05\/sciad-homepage_hero_poster.png","contentUrl":"https:\/\/www.sciad.com\/wp-content\/uploads\/2023\/05\/sciad-homepage_hero_poster.png","width":2554,"height":1382},{"@type":"BreadcrumbList","@id":"https:\/\/www.sciad.com\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home"}]},{"@type":"WebSite","@id":"https:\/\/www.sciad.com\/#website","url":"https:\/\/www.sciad.com\/","name":"Sciad","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.sciad.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"}]}
Web-Graph History

Authority over time

Every Common Crawl web-graph release since 2017, roughly quarterly. The domain series goes back to 2017; Common Crawl only began publishing the host-level graph in 2020, so host lines start there. Click a legend entry to show or hide that line. Flat lines are normal for established sites; watch for sustained rises or drops, which track real gains or losses in who links here.

A note on www: through the end of 2025 the source web graph merged www and non-www hostnames into the bare name, so one host line covers both. Starting in January 2026 the graph splits them into separate entries, which is why www can carry its own scores going forward.

Backlink Data

Backlink counts

Unique linking domains seen in Common Crawl's link graphs. This is a different dataset than the 0-100 authority scores above: these are raw counts, host-level for sciad.com and domain-level for sciad.com with all its subdomains combined. Common Crawl covers a large sample of the web, not all of it, so treat counts as comparable between sites rather than absolute totals.

10
Host Backlinks
100
Domain Backlinks
Backlink Data

Top backlinks in the domain graph

Common Crawl publishes two link graphs. The DOMAIN graph connects whole domains: every link from any page of one domain to any page of another. This table shows the highest-authority domains linking to sciad.com (including its subdomains), ranked by the linker's PageRank. The table shows the top 100; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.

Download domain backlinks (.json)

Linking SiteLinker PageRankLinker Harmonic Centrality
cision.com6837
terrapinn.com6435
hyperisland.com5233
pharmiweb.com5034
europeancancer.org4924
webofthings.org4524
supremeopti.com4321
onenucleus.com4023
sachsforum.com4022
qsaveinnovation.it4018
anzianienonsolo.it3824
m-ventures.com3821
lifescienceintegrates.com3722
adaventures.com3520
invivoscribe.com3421
genesisconference.com3421
rannkly.com3419
medicaldevice-developments.com3222
synbicite.com3122
fluidhandlingpro.com3119
isotopx.com3020
accueil-tradition-grand-place.be2817
domainex.co.uk2722
siemens-caring-hands.org2622
taylordentist.com2622
nagibio.ch2620
inaphaea.com2619
salvadorentretenimento.com.br2520
multiomic.health2420
aimworldai.com2412
olash.ru2322
aoyamackn.co.jp2319
onhelix.com2319
site131.com2218
rothstein.dk2123
jasminsideenreich.de2119
murakumomura.com2020
synbitech.com2019
nicolaisen-hamburg.de2019
bikerentalbali.com2019
onenucleusawards.com2014
finden.co.uk1918
opencommunicationsgroup.com190
sciadnewswire.com1818
talukadapoli.com1723
glocalweb.in1719
ppopwave.com1623
club-crcc.ca1523
al-adala.de1523
laverocktx.com1518
okulistawojcicki.pl1518
svetloposudok.sk1513
ascolbi.org1322
marcoconti.it1321
concinnitygenetics.com1319
robuta.com1318
sandratorralba.com1222
curileum.com1118
anikachoudhary.com1118
homesolarsessions.com1118
enzymlogic.com1117
tourvoyage.net1117
zythera.com919
kannu.ee917
gyncare.pl917
ascendobiotech.com917
g3therapeutics.com817
iuui.jp817
avvocatomauriziodanza.com817
hiroshima-nittoboueki.com817
galerie-st-jacques.com719
pakko.org717
malangmu.com713
onenucleus.co.uk713
hautquercy-rando.fr618
chamberorchestra.ru617
friedensrunde.org613
caperegency.com518
lll-world-marketing.com517
lamoraldelalcoyano.com517
vibhutikavishwar.com517
gaister.com517
chhaylong.com514
dokladnietak.pl417
nmc-vn.com.vn417
balbinomones.es417
alexjones.biz417
drchallalimaxime.com413
caniracjalisco.org317
dt-trainer.fr317
casaruraltioemilio.es317
1nucleus.com317
onenucleus.org313
puppylovempls.com217
ccwaunfawrcaeathro.co.uk217
itmaroon.net213
buyruk.net213
sciadpublishing.com00
lifescienceleadershipseries.co.uk00
onenucleus.biz00
Backlink Data

Top backlinks in the host graph

The HOST graph connects exact hostnames, so subdomains count separately. This table shows the highest-authority hosts linking to sciad.com specifically, ranked by the linker's PageRank. The table shows the top 10; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.

Download host backlinks (.json)