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Site Information

ziffit.com

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

24Domain PageRank
21Host Backlinks
158Domain Backlinks
Link authority data (PageRank, harmonic centrality) and backlinks come from the Common Crawl web graph.
ziffit_com.profile
Current Scores

Web-graph authority (0-100)

Domain scores measure ziffit.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 ziffit.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.

24
Domain PageRank
3
Host PageRank
15
WWW PageRank
96
Domain Harmonic Centrality
94
Host Harmonic Centrality
95
WWW Harmonic Centrality
Site Intelligence

Homepage

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

TitleWorld of Books US | Sell Textbooks, Books, DVDs, CDs & Games
DescriptionSell textbooks, books, CDs, DVDs & games online. Instant price, free shipping with FedEx or USPS, and fast payment.
OG TitleWorld of Books US | Sell Textbooks, Books, DVDs, CDs & Games
OG DescriptionSell textbooks, books, CDs, DVDs & games online. Instant price, free shipping with FedEx or USPS, and fast payment.
Twitter TitleWorld of Books US | Sell Textbooks, Books, DVDs, CDs & Games
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.

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: WebSite, Organization, WebPage, BreadcrumbList, MobileApplication.

JSON-LD block (456 bytes)
{"@context":"https://schema.org","@graph":[{"@type":"WebSite","name":"World of Books - Sell Your Books","url":"https://sell.worldofbooks.com","publisher":{"@id":"https://sell.worldofbooks.com/#organization"}},{"@type":"Organization","@id":"https://sell.worldofbooks.com/#organization","name":"World of Books Ltd.","url":"https://sell.worldofbooks.com","logo":{"@type":"ImageObject","url":"https://sell.worldofbooks.com/static/images/sell-back-logo.svg"}}]}
JSON-LD block (542 bytes)
{"@context":"https://schema.org","@graph":[{"@type":"WebPage","name":"World of Books US | Sell Textbooks, Books, DVDs, CDs & Games","description":"Sell textbooks, books, CDs, DVDs & games online. Instant price, free shipping with FedEx or USPS, and fast payment.","url":"https://sell.worldofbooks.com/en-us/home","publisher":{"@id":"https://sell.worldofbooks.com/#organization"},"inLanguage":"en-US"},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://sell.worldofbooks.com/en-us"}]}]}
JSON-LD block (1,171 bytes)
{"@context":"https://schema.org","@type":"MobileApplication","name":"World of Books Sell App","description":"Sell your books for cash instantly. Scan barcodes with your phone, get instant quotes, and ship for free. Trade in textbooks, fiction, non-fiction, and more.","operatingSystem":"iOS, Android","applicationCategory":"Shopping","aggregateRating":{"@type":"AggregateRating","ratingValue":"4.6","ratingCount":"100000"},"offers":[{"@type":"Offer","price":"0","priceCurrency":"USD","url":"https://apps.apple.com/us/app/sell-books-with-world-of-books/id1450826468"},{"@type":"Offer","price":"0","priceCurrency":"USD","url":"https://play.google.com/store/apps/details?id=uk.co.brightec.ziffit.us&hl=en"}],"downloadUrl":["https://apps.apple.com/us/app/sell-books-with-world-of-books/id1450826468","https://play.google.com/store/apps/details?id=uk.co.brightec.ziffit.us&hl=en"],"screenshot":"https://sell.worldofbooks.com/static/images/app-screenshot.jpg","contentRating":"4+","publisher":{"@id":"https://sell.worldofbooks.com/#organization"},"featureList":["Barcode scanning for instant quotes","Free shipping on all orders","Fast payment options","Track your shipments"]}
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 ziffit.com and domain-level for ziffit.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.

21
Host Backlinks
158
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 ziffit.com (including its subdomains), ranked by the linker's PageRank. The table shows the top 158; 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
google.com10099
apple.com9253
blogspot.com8648
auth0.com7639
vice.com7542
page.link7541
abebooks.com6940
which.co.uk6836
virginmoney.com6224
rspca.org.uk6034
stem4.org.uk5934
mention-me.com5933
thepennyhoarder.com5726
worldofbooks.com5634
vouchercloud.com5625
northampton.ac.uk5534
saga.co.uk5425
missingpeople.org.uk5334
theworkathomewoman.com5223
euansguide.com5033
fundraising.co.uk5024
eurekster.com4933
pancreaticcancer.org.uk4924
monese.com4733
geeknative.com4724
yourmoney.com4723
moneypantry.com4622
thewaystowealth.com4523
huntingdonshire.gov.uk4433
fmtc.co4333
sguru.org4223
moneymagpie.com4222
moneydoneright.com4222
wealthysinglemommy.com4122
homeowner.com4121
shinyshiny.tv3924
coolsmartphone.com3923
pta.co.uk3922
gatheringdreams.com3922
goodhomesmagazine.com3922
shipthedeal.com3921
atidymind.co.uk3822
mobiliseonline.co.uk3821
greatwesternairambulance.com3819
barnetcab.org.uk3733
bridgesfundmanagement.com3721
family-budgeting.co.uk3623
rhn.org.uk3623
stjh.org.uk3622
organisemyhouse.com3622
hearmefolks.com3619
justpaste.in3533
sea-changers.org.uk3522
severnhospice.org.uk3522
disability-challengers.org3423
prostatescotland.org.uk3321
moneyaware.co.uk3320
storing.com3320
palaceforlife.org3319
apartostudent.com3221
loans2go.co.uk3219
dreamshala.com3121
fopfriends.com3120
moneyconnexion.com3021
hspgroup.org2822
thismamablogs.com2822
edsociety.co.uk2821
homelifeandyou.com2814
headwayessex.org.uk2722
reducereuserecycle.co.uk2721
fareshare.cymru2718
jibberjabberuk.co.uk2623
bosp.co.uk2619
the-frugality.com2522
beaumondhouse.co.uk2518
startupmag.co.uk2518
huntsdc.gov.uk2423
instya.com2422
campsimcha.org.uk2422
autisticculturepodcast.com2421
boostmybudget.com2420
thedoor.org.uk2417
wishhcharity.org.uk2321
flickafoundation.org.uk2321
fleetphoenix.co.uk2317
sioncommunity.org.uk2222
shredstation.co.uk2218
scannappeal.org.uk2218
good.business2122
sarahjnaylor.com2119
disposalxt.com2119
therobgeorgefoundation.co.uk2117
manechancesanctuary.org2117
envirolineblog.com2022
shuktara.org2020
sandcastletrust.org2017
mouthymoney.co.uk1918
thepennypincher.co.uk1918
cordery.org.uk198
doablesimplicity.com1818
organisedwell.co.uk1718
feetdotravel.com1622
top100women.com.au1621
360vouchercodes.co.uk1618
thegreencentre.co.uk1618
ovationfinance.co.uk1618
podorder.io1520
newlifehometrust.org.uk1517
themoneybuilders.co.uk1419
sloely.com1417
livechatdirectory.co.uk1319
lollipopyork.org.uk1318
couponqueen.co.uk1317
yourmoneysorted.co.uk1218
koinonia.co.uk1217
cashbackcollette.co.uk1217
tidyhappycalm.co.uk1217
thewastenotlist.uk1118
themoneyprinciple.com1117
thewidowshandbook.com1117
bronni.co.uk1114
moneyfromsidehustle.com1020
newhavengreencentre.com1013
saponline.org922
benella.co.uk914
vacationist.co.uk814
trustpa.com813
9thmuswellhill.org.uk717
mrsbargainhunter.co.uk713
taltonroberson.com70
casonline.com618
getitdunn.co617
dollarslate.com617
savingscotts.com522
laughterafrica.org.uk517
offthestreet.org.uk514
alisonmthompson.co.uk512
loveshare4.com413
newfashionsharing.com413
sprinkledigital.com410
anti-nwo.site213
lowdhamvolunteers.org24
homeinthegreen.com117
readwithmims.com113
boostmy.finance112
theprofitbox.co.uk112
christmas-organised.com111
whatreallymakesmoney.com18
vouchers-vouchers.com18
barefootintention.com010
startupmania.info00
jinnuogabion.com00
notarsed.com00
firstonlineprofits.com00
shopperfeel.com00
creaturesofwar.com00
thestephenhughesfoundation.co.uk00
zeroearners.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 ziffit.com specifically, ranked by the linker's PageRank. The table shows the top 21; 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)