hsfc.org.uk
Link authority for hsfc.org.uk (registrable domain: hsfc.org.uk) from the Common Crawl web graph: PageRank and harmonic centrality history since 2017, current scores, and the site's top backlink sources.
Web-graph authority (0-100)
Domain scores measure hsfc.org.uk 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 hsfc.org.uk. 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.
Homepage
What hsfc.org.uk presents on its own homepage: the page title, description, and the social share markup it publishes. Pulled from https://hsfc.org.uk.
| Title | Harley Street Fertility Clinic London – Leading Fertility Experts |
|---|---|
| Description | UK's leading fertility clinic offering tailored fertility solutions. Personal approach to parenthood, leaving no stone unturned and leading results in London. |
| OG Title | Harley Street Fertility Clinic London – Leading Fertility Experts |
| OG Description | UK's leading fertility clinic offering tailored fertility solutions. Personal approach to parenthood, leaving no stone unturned and leading results in London. |
| Twitter Title | Harley Street Fertility Clinic London – Leading Fertility Experts |
| Twitter Card | summary |
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.
| Googleplay | co.salvehealth.salve |
|---|---|
| HarleyStreetFertilityClinic | |
| hsfc_uk | |
| X | HSFC_UK |
| hsfc (business) |
| Contact pages | https://hsfc.org.uk/contact |
|---|---|
| Emails |
hello@hsfc.org.uk info@hsfc.org.uk |
| Phones |
+44%20(0)%20207%20101%207027 02074366838 |
| Blog |
https://hsfc.org.uk/news https://hsfc.org.uk/news/bahi-launch https://hsfc.org.uk/news/endometriosis-and-fertility-a-specialists-guide-from-harley-street https://hsfc.org.uk/news/your-first-fertility-appointment-what-to-expect-how-to-prepare |
Structured data (JSON-LD)
The schema.org markup this homepage publishes: the machine-readable identity search engines and AI systems read. Types found: MedicalClinic, Organization.
JSON-LD block (6,476 bytes)
{
"@context": "https://schema.org",
"@type": "MedicalClinic",
"name": "Harley Street Fertility Clinic",
"url": "https://hsfc.org.uk/",
"logo": "https://hsfc.org.uk/hubfs/Screenshot%202022-11-30%20at%2021.07.49.svg",
"description": "Harley Street Fertility Clinic offers world-class fertility treatments and expert care in London. Our services include IVF, IUI, egg freezing, sperm freezing, embryo freezing, genetic testing, and advanced fertility investigations.",
"address": {
"@type": "PostalAddress",
"streetAddress": "134 Harley Street",
"addressLocality": "London",
"postalCode": "W1G 7JY",
"addressCountry": "UK"
},
"contactPoint": [
{
"@type": "ContactPoint",
"telephone": "+44 207 101 7027",
"contactType": "New Patient Enquiries",
"availableLanguage": ["English"]
},
{
"@type": "ContactPoint",
"telephone": "+44 20 3376 8378",
"contactType": "Existing Patient Enquiries",
"availableLanguage": ["English"]
},
{
"@type": "ContactPoint",
"telephone": "+44 7739 527 505",
"contactType": "Emergency Out of Hours",
"availableLanguage": ["English"]
},
{
"@type": "ContactPoint",
"email": "hello@hsfc.org.uk",
"contactType": "General Enquiries"
},
{
"@type": "ContactPoint",
"email": "info@hsfc.org.uk",
"contactType": "Existing Patient Support"
}
],
"openingHours": [
"Mo-Fr 08:00-16:30"
],
"sameAs": [
"https://www.facebook.com/HarleyStreetFertilityClinic/",
"https://twitter.com/hsfc_uk",
"https://www.instagram.com/harleystreetfertilityclinic/"
],
"medicalSpecialty": "Reproductive Health",
"availableService": [
{
"@type": "MedicalProcedure",
"name": "In-Vitro Fertilisation (IVF)",
"url": "https://hsfc.org.uk/fertility-treatments/ivf-treatment",
"description": "Advanced IVF treatment using state-of-the-art techniques to maximize egg growth and embryo development."
},
{
"@type": "MedicalProcedure",
"name": "Intra-Uterine Insemination (IUI)",
"url": "https://hsfc.org.uk/fertility-treatments/iui",
"description": "A simpler alternative to IVF, placing quality sperm directly into the uterus."
},
{
"@type": "MedicalProcedure",
"name": "Egg Freezing",
"url": "https://hsfc.org.uk/fertility-treatments/preserve-fertility/egg-freezing",
"description": "Egg collection, freezing, and safe storage for future fertility planning."
},
{
"@type": "MedicalProcedure",
"name": "Sperm Freezing",
"url": "https://hsfc.org.uk/fertility-treatments/preserve-fertility/sperm-freezing",
"description": "Freezing and storing sperm for future use."
},
{
"@type": "MedicalProcedure",
"name": "Embryo Freezing",
"url": "https://hsfc.org.uk/fertility-treatments/preserve-fertility/embryo-freezing",
"description": "Creation, freezing, and storage of embryos for future fertility treatment."
},
{
"@type": "MedicalProcedure",
"name": "Genetic Testing (PGT)",
"url": "https://hsfc.org.uk/fertility-treatments/specialised-fertility-treatment/pgt",
"description": "Preimplantation genetic testing to improve IVF success rates and reduce the risk of miscarriage."
},
{
"@type": "MedicalProcedure",
"name": "Advanced Fertility Investigations",
"url": "https://hsfc.org.uk/fertility-treatments/advanced-fertility-investigation",
"description": "Comprehensive fertility assessments including 3D ultrasound, immunology testing, and endometrial receptivity analysis."
}
],
"branchOf": {
"@type": "MedicalOrganization",
"name": "Harley Street Fertility Clinic",
"url": "https://hsfc.org.uk/"
},
"hasOfferCatalog": {
"@type": "OfferCatalog",
"name": "Fertility Treatments & Services",
"itemListElement": [
{
"@type": "Offer",
"itemOffered": {
"@type": "MedicalProcedure",
"name": "IVF",
"url": "https://hsfc.org.uk/fertility-treatments/ivf-treatment"
}
},
{
"@type": "Offer",
"itemOffered": {
"@type": "MedicalProcedure",
"name": "Egg Freezing",
"url": "https://hsfc.org.uk/fertility-treatments/preserve-fertility/egg-freezing"
}
},
{
"@type": "Offer",
"itemOffered": {
"@type": "MedicalProcedure",
"name": "Sperm Freezing",
"url": "https://hsfc.org.uk/fertility-treatments/preserve-fertility/sperm-freezing"
}
}
]
},
"areaServed": {
"@type": "Place",
"address": {
"@type": "PostalAddress",
"addressLocality": "London",
"addressCountry": "UK"
}
},
"additionalProperty": [
{
"@type": "PropertyValue",
"name": "Fertility Success Rates",
"value": [
"71% success rate for women of all ages with PGT-A",
"73% success rate for women under 35",
"54% success rate for women over 40"
]
}
],
"subOrganization": [
{
"@type": "MedicalClinic",
"name": "This is My Health Hubs",
"description": "Partner clinics providing ultrasound and blood testing services across multiple locations.",
"location": [
{
"@type": "MedicalClinic",
"name": "Leeds Clinic",
"address": {
"@type": "PostalAddress",
"streetAddress": "93 Water Lane",
"addressLocality": "Leeds",
"postalCode": "LS11 5QN",
"addressCountry": "UK"
}
},
{
"@type": "MedicalClinic",
"name": "Manchester Clinic",
"address": {
"@type": "PostalAddress",
"streetAddress": "30 Queen Street",
"addressLocality": "Manchester",
"postalCode": "M2 5HX",
"addressCountry": "UK"
}
}
]
},
{
"@type": "MedicalClinic",
"name": "Expectancy Scanning Studios",
"description": "Partner scanning studio in Kent providing local scanning services.",
"address": {
"@type": "PostalAddress",
"streetAddress": "Unit 1 Grove Dairy Farm Business Centre, Bobbing Hill",
"addressLocality": "Nr Sittingbourne",
"postalCode": "ME9 8NY",
"addressCountry": "UK"
}
}
]
}
JSON-LD block (959 bytes)
{
"@context": "https://schema.org",
"@type": "Organization",
"name": "Harley Street Fertility Clinic",
"url": "https://hsfc.org.uk/",
"logo": "https://hsfc.org.uk/hubfs/Screenshot%202022-11-30%20at%2021.07.49.svg",
"description": "Harley Street Fertility Clinic is a leading fertility clinic in London offering world-class treatments including IVF, IUI, egg freezing, sperm freezing, and genetic testing.",
"contactPoint": [
{
"@type": "ContactPoint",
"telephone": "+44 207 101 7027",
"contactType": "New Patient Enquiries",
"availableLanguage": ["English"]
}
],
"sameAs": [
"https://www.facebook.com/HarleyStreetFertilityClinic/",
"https://twitter.com/hsfc_uk",
"https://www.instagram.com/harleystreetfertilityclinic/"
],
"foundingDate": "2010",
"founders": [
{
"@type": "Person",
"name": "Dr. Geetha Venkat"
}
]
}
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 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 hsfc.org.uk and domain-level for hsfc.org.uk 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.
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 hsfc.org.uk (including its subdomains), ranked by the linker's PageRank. The table shows the top 58; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.
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 hsfc.org.uk specifically, ranked by the linker's PageRank. The table shows the top 54; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.