Link Check results for www.sealedenvelope.com

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Last checked: July 9, 2025 17:15:36

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Page Info

  • URL: https://www.sealedenvelope.com/
  • Title: Sealed Envelope | Randomisation (randomization) and online databases for clinical trials
  • Favicon: www.sealedenvelope.com logo

Host Info

  • Domain: www.sealedenvelope.com
  • Server: Apache
  • Country: United Kingdom
  • IP: 134.213.49.173
  • ASN: 15395 (RACKSPACE-LON)

Technologies

  • Bootstrap logo Bootstrap
  • Apache HTTP Server logo Apache HTTP Server
  • Sendinblue logo Sendinblue
  • jQuery logo jQuery
  • HSTS logo HSTS
  • Google Hosted Libraries logo Google Hosted Libraries
  • Google Font API logo Google Font API

SSL Info

  • HTTPS: Yes
  • Certificate Issuer: R11
  • Valid From: 2025-05-16 10:05:37
  • Valid To: 2025-08-14 10:05:36
  • Subject Name: www.sealedenvelope.com

Statistics

  • Total Requests: 48
  • Total Transfer Size: 387.78 KB
  • Total Content Size: 508.57 KB
  • Domains: 3
  • IP Addresses: 3

Headers

Accept-Ranges: bytes

Connection: Keep-Alive

Content-Encoding: gzip

Content-Length: 9282

Content-Security-Policy: frame-ancestors 'self'

Content-Type: text/html

Date: Wed, 09 Jul 2025 17:15:42 GMT

ETag: "7709-63931891b10f8-gzip"

Keep-Alive: timeout=5, max=100

Last-Modified: Sat, 05 Jul 2025 16:59:36 GMT

Referrer-Policy: strict-origin

Server: Apache

Strict-Transport-Security: max-age=31536000; includeSubDomains

Vary: Accept-Encoding

Via: 1.1 www.sealedenvelope.com

X-Content-Type-Options: nosniff

X-Frame-Options: SAMEORIGIN

X-Xss-Protection: 0

Detailed Technologies

Name Category Description
Bootstrap
Bootstrap

UI frameworks

Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
Apache HTTP Server
Apache HTTP Server

Web servers

Apache is a free and open-source cross-platform web server software.
Sendinblue
Sendinblue

Marketing automation
Email

Sendinblue is an email marketing solution for small and medium-sized businesses that want to send and automate email marketing campaigns.
jQuery
jQuery

JavaScript libraries

jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
HSTS
HSTS

Security

HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Google Hosted Libraries
Google Hosted Libraries

CDN

Google Hosted Libraries is a stable, reliable, high-speed, globally available content distribution network for the most popular, open-source JavaScript libraries.
Google Font API
Google Font API

Font scripts

Google Font API is a web service that supports open-source font files that can be used on your web designs.

External Links

Label URL
Documentation
https://help.sealedenvelope.com
FAQ
https://help.sealedenvelope.com/collection/83-faq
Access
https://help.sealedenvelope.com/collection/169-access
Randomisation
https://help.sealedenvelope.com/category/198-randomisation
Simple randomisation
https://help.sealedenvelope.com/collection/172-simple-service
Red Pill
https://help.sealedenvelope.com/collection/101-red-pill-and-randomisation
CRF Builder
https://help.sealedenvelope.com/collection/1-crf-builder
Feasibility and acceptability of autism adapted safety plans: an external pilot randomised controlled trial
https://doi.org/10.1016/j.eclinm.2024.102662
Evaluating the clinical and cost-effectiveness of a conservative approach to oxygen therapy for invasively ventilated adults in intensive care: Protocol for the UK-ROX trial
https://doi.org/10.1177%2F17511437241239880
Hypothermia for moderate or severe neonatal encephalopathy in low-income and middle-income countries (HELIX): a randomised controlled trial in India, Sri Lanka, and Bangladesh
https://doi.org/10.1016/S2214-109X(21)00264-3
An interactive website to aid young women's choice of contraception: feasibility and efficacy RCT
https://doi.org/10.3310/hta24560
Effects of tranexamic acid on death, disability, vascular occlusive events and other morbidities in patients with acute traumatic brain injury (CRASH-3): a randomised, placebo-controlled trial
https://doi.org/10.1016/S0140-6736(19)32233-0
Effect of remote ischaemic conditioning on clinical outcomes in patients with acute myocardial infarction (CONDI-2/ERIC-PPCI): a single-blind randomised controlled trial
https://doi.org/10.1016/S0140-6736(19)32039-2
A randomised, controlled, observermasked trial of corneal cross-linking for progressive keratoconus in children: the KERALINK protocol
https://doi.org/10.1136/bmjopen-2018-028761
Vitamin D supplementation and serum heat shock protein 60 levels in patients with coronary heart disease: a randomized clinical trial
https://doi.org/10.1186/s12986-018-0292-9
Randomized phase I trial HIV-CORE 003: Depletion of serum amyloid P component and immunogenicity of DNA vaccination against HIV-1
https://doi.org/10.1371%2Fjournal.pone.0197299
Shortening cardioplegic arrest time in patients undergoing combined coronary and valve surgery: results from a multicentre randomized controlled trial: the SCAT trial
https://doi.org/10.1093/ejcts/ezx087
Effect of early tranexamic acid administration on mortality, hysterectomy, and other morbidities in women with post-partum haemorrhage (WOMAN): an international, randomised, double-blind, placebo-controlled trial
https://doi.org/10.1016/S0140-6736(17)30638-4
Cognitive behavioural therapy and short-term psychoanalytical psychotherapy versus a brief psychosocial intervention in adolescents with unipolar major depressive disorder (IMPACT): a multicentre, pragmatic, observer-blind, randomised controlled superiority trial
https://doi.org/10.1016/S2215-0366(16)30378-9
A randomized, double-blind phase II study evaluating cediranib versus cediranib and saracatinib in patients with relapsed metastatic clear-cell renal cancer (COSAK)
https://doi.org/10.1093/annonc/mdw014
Phenytoin for neuroprotection in patients with acute optic neuritis: a randomised, placebo-controlled, phase 2 trial
https://doi.org/10.1016/S1474-4422(16)00004-1
Remote Ischemic Preconditioning and Outcomes of Cardiac Surgery
https://doi.org/10.1056/NEJMoa1413534
Liberal or Restrictive Transfusion after Cardiac Surgery
https://doi.org/10.1056/NEJMoa1403612
A randomised controlled trial evaluating IGF1 titration in contrast to current GH dosing strategies in children born small for gestational age: the North European Small-for-Gestational-Age Study
https://doi.org/10.1530/EJE-14-0419
First metatarsophalangeal joint arthrodesis versus proximal phalanx hemiarthroplasty for hallux rigidus: feasibility study for a randomised controlled trial
http://www.trialsjournal.com/content/15/1/79
Effect of high-dose simvastatin on brain atrophy and disability in secondary progressive multiple sclerosis (MS-STAT): a randomised, placebo-controlled, phase 2 trial
http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(13)62242-4/fulltext
How to Calculate Sample Size and Why
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3758995/
Alternative treatments to inhibit VEGF in age-related choroidal neovascularisation: 2-year findings of the IVAN randomised controlled trial
http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(13)61501-9/fulltext
The Transfusion Alternatives Preoperatively in Sickle Cell Disease (TAPS) study: a randomised, controlled, multicentre clinical trial
http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(12)61726-7/abstract
Improving the Efficiency of Advanced Life Support Training: A Randomized, Controlled Trial
http://annals.org/article.aspx?articleid=1206686
Bronchodilatory effect of inhaled budesonide/formoterol and budesonide/salbutamol in acute asthma: a double-blind, randomized controlled trial
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3324377/
Elective Intra-aortic Balloon Counterpulsation During High-Risk Percutaneous Coronary Intervention A Randomized Controlled Trial
http://jama.jamanetwork.com/article.aspx?articleid=186467
Lamotrigine for neuroprotection in secondary progressive multiple sclerosis: a randomised, double-blind, placebo-controlled, parallel-group trial
http://www.thelancet.com/journals/laneur/article/PIIS1474-4422(10)70131-9/fulltext
Early Insulin Therapy in Very-Low-Birth-Weight Infants
http://www.nejm.org/doi/full/10.1056/NEJMoa0803725
Link
https://www.dsptoolkit.nhs.uk/OrganisationSearch/R5S7B
Status
https://status.sealedenvelope.com/

Requested Domains

Domain Type Categories
ajax.googleapis.com
N/A
N/A
stackpath.bootstrapcdn.com
N/A
N/A
www.sealedenvelope.com
Subdomain
Health & Fitness, Health

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