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Site Information

nelsonlabs.com

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

17Domain PageRank
24Host Backlinks
205Domain Backlinks
Link authority data (PageRank, harmonic centrality) and backlinks come from the Common Crawl web graph.
nelsonlabs_com.profile
Current Scores

Web-graph authority (0-100)

Domain scores measure nelsonlabs.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 nelsonlabs.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.

17
Domain PageRank
4
Host PageRank
15
WWW PageRank
95
Domain Harmonic Centrality
94
Host Harmonic Centrality
94
WWW Harmonic Centrality
Site Intelligence

Homepage

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

TitleNelson Labs - Microbiology Testing Lab
DescriptionWe are a leading, global testing lab specializing in expert advisory and testing solutions for medical device, pharmaceutical, tissue & biologics companies
OG TitleNelson Labs - Microbiology Testing Lab
OG DescriptionWe are a leading, global testing lab specializing in expert advisory and testing solutions for medical device, pharmaceutical, tissue & biologics companies
OG Site NameNelson Labs
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.

Linkedin nelson-laboratories-llc (business)
Facebook NelsonLabs
Contact pages https://www.nelsonlabs.com/contact-us/
Phones +18012907500
+32016400484
+862168280215
1-800-826-2088
Feeds https://www.nelsonlabs.com/feed/
https://www.nelsonlabs.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, BreadcrumbList, WebSite, Organization.

JSON-LD block (2,152 bytes)
{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.nelsonlabs.com\/","url":"https:\/\/www.nelsonlabs.com\/","name":"Nelson Labs - Microbiology Testing Lab","isPartOf":{"@id":"https:\/\/www.nelsonlabs.com\/#website"},"about":{"@id":"https:\/\/www.nelsonlabs.com\/#organization"},"datePublished":"2018-07-06T06:54:02+00:00","dateModified":"2026-05-27T14:55:19+00:00","description":"We are a leading, global testing lab specializing in expert advisory and testing solutions for medical device, pharmaceutical, tissue & biologics companies","breadcrumb":{"@id":"https:\/\/www.nelsonlabs.com\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.nelsonlabs.com\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.nelsonlabs.com\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home"}]},{"@type":"WebSite","@id":"https:\/\/www.nelsonlabs.com\/#website","url":"https:\/\/www.nelsonlabs.com\/","name":"Nelson Labs","description":"","publisher":{"@id":"https:\/\/www.nelsonlabs.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.nelsonlabs.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.nelsonlabs.com\/#organization","name":"Nelson Labs","url":"https:\/\/www.nelsonlabs.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.nelsonlabs.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.nelsonlabs.com\/wp-content\/uploads\/2018\/07\/nelson-labs-sotera-health-logo.png","contentUrl":"https:\/\/www.nelsonlabs.com\/wp-content\/uploads\/2018\/07\/nelson-labs-sotera-health-logo.png","width":300,"height":113,"caption":"Nelson Labs"},"image":{"@id":"https:\/\/www.nelsonlabs.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/NelsonLabs","https:\/\/x.com\/NelsonLabs","https:\/\/www.linkedin.com\/company\/nelson-laboratories-llc\/","https:\/\/www.youtube.com\/NelsonLabs"]}]}
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 nelsonlabs.com and domain-level for nelsonlabs.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.

24
Host Backlinks
205
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 nelsonlabs.com (including its subdomains), ranked by the linker's PageRank. The table shows the top 205; 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
nih.gov8446
cdc.gov8145
mdpi.com7743
alibaba.com7539
prweb.com7238
marketsandmarkets.com7138
ulifestyle.com.hk7134
bsigroup.com6937
byu.edu6838
newswire.ca6836
linkcentre.com6739
precedenceresearch.com6636
prezly.com6335
prnewswire.co.uk6234
straitsresearch.com6135
usp.org6134
coherentmarketinsights.com5926
custommarketinsights.com5835
astuteanalytica.com5826
h5mag.com5823
my-best.com5734
mdmwest.com5621
hoaxbuster.com5534
dechema.de5525
techbriefs.com5434
rbind.io5334
medtechintelligence.com5333
cbi.eu5326
infectioncontroltoday.com5325
jobtoolz.com5221
nridigital.com5024
easyling.com4834
presseportal.ch4824
greenlight.guru4824
stellarmr.com4823
24x7mag.com4623
memberzone.com4622
chem-station.com4533
medicaldesignbriefs.com4524
cleanroomtechnology.com4524
datwyler.com4523
nhsjs.com4333
womentechcouncil.com4221
startupill.com4122
medtecchina.com4121
owlstonemedical.com3922
sterigenics.com3823
tyvek.co.jp3822
papasearch.net3733
mendenarena.de3733
nordion.com3723
inven.ai3723
biopharmguy.com3723
qepler.com3633
intentmarketresearch.com3633
filtnews.com3621
iiaglobal.com3523
rapidmicrobiology.com3523
oliverhcp.com3519
mymusicfolders.com3421
soterahealth.com3421
engagecleveland.org3322
veranex.com3320
myhealthbeijing.com3223
utahsafetycouncil.org3222
rcainc.com3023
medicaldesignsourcing.com3020
maskcorpamerica.com308
medicaldeviceacademy.com2922
breathesafeair.com2921
bioutah.org2920
hitecher.com2823
hum-molgen.org2823
alea.care2822
irradiationpanel.org2821
basicknowledge101.com2722
plasticingenuity.com2721
carlightvision.com2721
larentreedudm.com2717
livesimplybyannie.com2622
epoxysetinc.com2618
swatmag.com2523
medtecs.com2522
celegence.com2521
ebeammachine.com2520
scmoatti.com2520
biopharmawebinars.com2518
industry-experts.com2422
pharmaedresources.com2419
carestreamamerica.com2419
vonlanthenevents.com2417
koclirov.cz2323
makermask.org2322
medmarc.com2318
biotechpharmasummit.com2222
eandl-conference.com2217
patientknowhow.com2121
menzl.com2118
mortarnet.com2118
allezakenopeenrijtje.be2117
clean-organized-family-home.com2022
rockthemickaraoke.com2017
ravefabricare.com1921
worldbusinesspromote.com1918
sterilux.bio190
fatfishmedia.com1817
dovideqmedical.com1813
dafratec.com1723
mocacare.com1722
boydbiomedical.com1719
rubberandseal.com1719
dltech.forum1718
kadevos.com1620
unitedsewinginc.com1521
cruxi.ai1519
jjccgroup.org1519
motex.com1517
priorityleasing.net1512
qualia-bio.com1419
youthfilter.com1419
adeal.re1418
medpharmplasteurope.org1417
c-valleyleuven.be1417
sbookscan.com1323
ippopress.org1319
omarghanem.com.br1319
robuta.com1318
biosciencelabs.com1317
shirtronics.co.il1312
airgami.life1219
fumaofabric.com1219
climate-debate.com1219
morntrip.com1217
lagenoteca.com1217
thepharmasustainabilitydays.com1217
wordyprint.com1217
avservices.net1217
purelysupp.com1217
sterilization-summit.com1214
kingbluecondos.ca1118
urbanmask.pl1117
drug-delivery.org1112
qvents.in1112
elbertwipes.com1019
avsillc.com1017
clearfilterpro.com919
custommetalpro.com919
theairstation.com.my919
kokoquest.com919
backlinks.sbs918
bnrincorporadora.com.br918
livingpur.com918
narwallmask.com917
manninghammedicalcentre.com.au917
pharmia.pt913
harmonise.org.uk817
cleanroomconnect.com817
airstayz.co812
runfittilburg.nl812
kcvirusmask.shop88
azknit.com717
medicalrd.com717
triadscientificsolutions.com716
cryometal.cz713
simmonsgroup.org710
clubatleticopilar.com617
soaplegacy.com613
pack-icpi.com611
brakko.com.br610
nelsonlabsbozeman.com519
itos.global517
chemintel360.com517
pharmadevils.com513
allcoldcooling.com512
etapapharma.com512
crownmutualgroup.com511
mstyle.com.br58
africactionetwork.com58
crownmutualgroup.net57
crownmutualgroup.ca57
domains.foundation418
asancnd.com417
purogen.com413
insightmarketreports.com413
envchemsci.com412
constitute.net318
morntrips.com317
tandheelkunde-centrum.nl317
annikaswfh.com313
dailytechbulletin.com312
regenmedsci.com214
lauklimited.co.uk213
chantelbeautymart.com211
cultivatedmeat.pl20
microbioconsulting.com113
bioinforesearch.com010
wvapplabs.com00
pulmeq.com00
cellbiotek.com00
christchurchcarpetcleaners.co.nz00
earthsafeppe.com00
halolifeusa.com00
maskhave.com00
natprodchem.com00
microbiosci.com00
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 nelsonlabs.com specifically, ranked by the linker's PageRank. The table shows the top 24; 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)