Quantum-journal.org - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
45% 
Page structure
95% 
Link structure
8% 
Server
48% 
External factors
100% 
SEO Score
Response time
4.30 s
File size
81.20 kB
Words
1227
Media files
32
Number of links
100 internal / 38 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Quantum – the open journal for quantum science
The length of the page title is perfect. (436 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-gb
Server location: United States of America
The following language is defined by HTML: en-gb
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1
robotsmax-image-preview:large
generatorWordPress 6.6.2
msapplication-TileImagehttps://quantum-journal.org/wp-content/uploads/2016/06/logo_square-300x300.png
langen-gb
fb:app_id583927995292775
og:typearticle
og:urlhttp://quantum-journal.org
og:titleQuantum
og:site_nameQuantum
og:descriptionQuantum is an open-access peer-reviewed journal for quantum science and related fields. Quantum is non-profit and community-run: an effort by researchers and for researchers to make science more open and publishing more transparent and efficient.
og:imagehttps://quantum-journal.org/wp-content/uploads/2017/01/quantum_facebook.png
charsetUTF-8

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Page quality

Content
(Critically important)
Only 2 paragraph/s was/were found on this page.
The average number of words per sentence of 54 words is high.
This page contains 1227 words. That's ok.
21.8% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
No placeholders texts or images were found.
There are no duplicates on the site.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
This page loads 11 JavaScript files. This may affect the load time negatively.
A viewport "width=device-width, initial-scale=1" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 25 tags for this page.
Image SEO
(Somewhat important)
17 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
This page is optimized perfectly for social networks.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
The HTTPS protocol for secure data transmission is not used.

Media list

URLAlt attributeTitle
...ent/uploads/2017/04/logo_small_sharp.pngQuantum
...s/onepress/assets/images/placholder2.pngNo alt attribute provided
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...s/2025/03/paclearninpac222-1-300x150.pngNo alt attribute provided
...s/onepress/assets/images/placholder2.pngNo alt attribute provided
...2025/03/prog-qaoa-flowchart2-300x150.pngNo alt attribute provided
...s/onepress/assets/images/placholder2.pngNo alt attribute provided
.../2025/03/Popular_summary_fig-300x150.pngNo alt attribute provided
...nt/uploads/2025/03/QRL1_2to1-300x150.jpgNo alt attribute provided
...ds/2025/03/Thumbnail_Quantum-300x150.pngNo alt attribute provided
...ntum_submission_picture.001-300x150.jpegNo alt attribute provided
...ploads/2025/03/quantum_image-300x150.pngNo alt attribute provided
...tent/uploads/2025/03/Regimes-300x150.jpgNo alt attribute provided
...s/onepress/assets/images/placholder2.pngNo alt attribute provided
...s/onepress/assets/images/placholder2.pngNo alt attribute provided
...s/onepress/assets/images/placholder2.pngNo alt attribute provided
...nshot-2025-02-27-at-10.50.44-300x150.pngNo alt attribute provided
...ads/2025/02/featured_image_q-300x150.pngNo alt attribute provided
...t/uploads/2018/07/quantum_mail_small.pngquantumlog as at
...nt/uploads/2023/03/agnostiq_covalent.pngAgnostiq
/wp-content/uploads/2022/03/UF_logo.pngUnitary Fund
.../2018/04/stanhill-foundation_sidebar.pngStanhill foundation
/wp-content/uploads/2016/11/logo_web.gifIQOQI Vienna
/wp-content/uploads/2017/10/CQT_logo.pngCQT
/wp-content/uploads/2017/05/cost-tqr.pngCOST network Thermodynamics in the Quantum Regime
...ntent/uploads/2018/06/xanadu_sidebar.pngXanadu logo
...tent/uploads/2018/03/crossrefsidebar.pngMember of Crossref
/wp-content/uploads/2018/02/doaj_logo.jpgListed in the Directory of Open Access Journals DOAJ
...loads/2018/03/recognized_by_eps_blue.pngRecognized by the European Physical Society
...ntent/uploads/2019/10/clarivate_scie.pngListed in the Clarivate Analytics Web of Science Core Collection Science Citation Index Expanded
...tent/uploads/2018/08/clockss_sidebar.pngPreserved in Clockss
/wp-content/uploads/2020/10/scopus.pngIndexed in Scopus

Page structure

H1 heading
(Critically important)
Publication charges to update in 2025
The H1 heading is perfect.
Headings
(Important)
Some headings occur twice on the page.

Heading structure

Heading levelContent
H1 Publication charges to update in 2025
H2 Publication charges to update in 2025 Duplicate text
H2 Local Purity Distillation in Quantum Systems: Exploring the Complementarity Between Purity and Entanglement
H2 PAC-learning of free-fermionic states is NP-hard
H2 What exactly does Bekenstein bound?
H2 Prog-QAOA: Framework for resource-efficient quantum optimization through classical programs
H2 Trade-off relations between measurement dependence and hidden information for factorizable hidden variable models
H2 Platonic dynamical decoupling sequences for interacting spin systems
H2 Quantum reinforcement learning in continuous action space
H2 Optimizing Gate Decomposition for High-Level Quantum Programming
H2 Approximation and Generalization Capacities of Parametrized Quantum Circuits for Functions in Sobolev Spaces
H2 Quantum key distribution rates from non-symmetric conic optimization
H2 Ultrastrong coupling, nonselective measurement and quantum Zeno dynamics
H2 Quantum memory assisted observable estimation
H2 Seedless extractors for device-independent quantum cryptography
H2 Chaos and magic in the dissipative quantum kicked top
H2 Device independent security of quantum key distribution from monogamy-of-entanglement games
H2 Spectral chaos bounds from scaling theory of maximally efficient quantum-dynamical scrambling
H2 Posts navigation
H2 People
H2 Supporters
H2 Memberships and Indexing
Some internal link anchor texts are too long.
Some anchor texts are used more than once.
17 links don't have an anchor text.
The number of internal links is ok.
All internal links are not using dynamic parameters.
There are too many external links (38) on this page.

Found links on this page

LinkAttributesAnchor text
http://quantum-journal.org/Anchor Skip to content
https://quantum-journal.org/IMG-ALT Quantum
http://quantum-journal.org/Anchor Menu
/volumes/Papers
/category/perspective,editorial/Perspectives
/instructions/authors/For authors
/instructions/referees/For referees
/instructions/for-editors/For editors
/instructions/instructions-for...For authors of Views
/editorial-policies/Editorial policies
/about/people/People
/category/general,news/News
/about/Mission and structure
/about/open-source/Tools and open source
/about/terms-and-conditions/Code of Conduct
/leaps/Outreach
/about/in-the-press/Press
/impressum/Contact
/papers/1665 Papers
/volumes9 Volumes
http://quantum-journal.org/views/84 Views
/updated-publication-charges/No Text
/category/news/Text duplicate News
/updated-publication-charges/Publication charges to update in 2025
/papers/q-2025-03-20-1666/No Text
/category/paper/Paper
/papers/q-2025-03-20-1666/Local Purity Distillation in Quantum Systems: Exploring the Complementarity Between Purity and Entanglement
https://doi.org/10.22331/q-202...External Quantum 9, 1666 (2025).
/papers/q-2025-03-20-1666/Quantum thermodynamics and quantum entanglement represent two pivotal quantum resource theories with significant relevance in quantum information science. De...
/papers/q-2025-03-20-1665/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-20-1665/PAC-learning of free-fermionic states is NP-hard
https://doi.org/10.22331/q-202...External Quantum 9, 1665 (2025).
/papers/q-2025-03-20-1665/Free-fermionic states, also known as matchgates or Gaussian states, are a fundamental class of quantum states due to their efficient classical simulability a...
/papers/q-2025-03-20-1664/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-20-1664/What exactly does Bekenstein bound?
https://doi.org/10.22331/q-202...External Quantum 9, 1664 (2025).
/papers/q-2025-03-20-1664/The Bekenstein bound posits a maximum entropy for matter with finite energy confined to a spatial region. It is often interpreted as a fundamental limit on t...
/papers/q-2025-03-20-1663/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-20-1663/Prog-QAOA: Framework for resource-efficient quantum optimization through classical programs
https://doi.org/10.22331/q-202...External Quantum 9, 1663 (2025).
/papers/q-2025-03-20-1663/Current state-of-the-art quantum optimization algorithms require representing the original problem as a binary optimization problem, which is then converted ...
/papers/q-2025-03-14-1662/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-14-1662/Trade-off relations between measurement dependence and hidden information for factorizable hidden variable models
https://doi.org/10.22331/q-202...External Quantum 9, 1662 (2025).
/papers/q-2025-03-14-1662/The Bell theorem is explored in terms of a trade-off relation between underlying assumptions within the hidden variable model framework. In this paper, recog...
/papers/q-2025-03-12-1661/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-12-1661/Platonic dynamical decoupling sequences for interacting spin systems
https://doi.org/10.22331/q-202...External Quantum 9, 1661 (2025).
/papers/q-2025-03-12-1661/In the NISQ era, where quantum information processing is hindered by the decoherence and dissipation of elementary quantum systems, developing new protocols ...
/papers/q-2025-03-12-1660/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-12-1660/Quantum reinforcement learning in continuous action space
https://doi.org/10.22331/q-202...External Quantum 9, 1660 (2025).
/papers/q-2025-03-12-1660/Quantum reinforcement learning (QRL) is a promising paradigm for near-term quantum devices. While existing QRL methods have shown success in discrete action ...
/papers/q-2025-03-12-1659/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-12-1659/Optimizing Gate Decomposition for High-Level Quantum Programming
https://doi.org/10.22331/q-202...External Quantum 9, 1659 (2025).
/papers/q-2025-03-12-1659/This paper presents novel methods for optimizing multi-controlled quantum gates, which naturally arise in high-level quantum programming. Our primary approac...
/papers/q-2025-03-10-1658/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-10-1658/Approximation and Generalization Capacities of Parametrized Quantum Circuits for Functions in Sobolev Spaces
https://doi.org/10.22331/q-202...External Quantum 9, 1658 (2025).
/papers/q-2025-03-10-1658/Parametrized quantum circuits (PQC) are quantum circuits which consist of both fixed and parametrized gates. In recent approaches to quantum machine learning...
/papers/q-2025-03-10-1657/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-10-1657/Quantum key distribution rates from non-symmetric conic optimization
https://doi.org/10.22331/q-202...External Quantum 9, 1657 (2025).
/papers/q-2025-03-10-1657/Computing key rates in quantum key distribution (QKD) numerically is essential to unlock more powerful protocols, that use more sophisticated measurement bas...
/papers/q-2025-03-06-1656/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-06-1656/Ultrastrong coupling, nonselective measurement and quantum Zeno dynamics
https://doi.org/10.22331/q-202...External Quantum 9, 1656 (2025).
/papers/q-2025-03-06-1656/We study the dynamics of an open quantum system linearly coupled to a bosonic reservoir. We show that, in the ultrastrong coupling limit, the system undergoe...
/papers/q-2025-03-06-1655/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-06-1655/Quantum memory assisted observable estimation
https://doi.org/10.22331/q-202...External Quantum 9, 1655 (2025).
/papers/q-2025-03-06-1655/The estimation of many-qubit observables is an essential task of quantum information processing. The generally applicable approach is to decompose the observ...
/papers/q-2025-03-06-1654/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-06-1654/Seedless extractors for device-independent quantum cryptography
https://doi.org/10.22331/q-202...External Quantum 9, 1654 (2025).
/papers/q-2025-03-06-1654/Device-independent (DI) quantum cryptography aims at providing secure cryptography with minimal trust in, or characterisation of, the underlying quantum devi...
/papers/q-2025-03-05-1653/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-05-1653/Chaos and magic in the dissipative quantum kicked top
https://doi.org/10.22331/q-202...External Quantum 9, 1653 (2025).
/papers/q-2025-03-05-1653/We consider an infinite-range interacting quantum spin-1/2 model, undergoing periodic kicking and dissipatively coupled with an environment. In the thermodyn...
/papers/q-2025-03-05-1652/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-03-05-1652/Device independent security of quantum key distribution from monogamy-of-entanglement games
https://doi.org/10.22331/q-202...External Quantum 9, 1652 (2025).
/papers/q-2025-03-05-1652/We analyse two party non-local games whose predicate requires Alice and Bob to generate matching bits, and their three party extensions where a third player ...
/papers/q-2025-02-26-1651/No Text
/category/paper/Text duplicate Paper
/papers/q-2025-02-26-1651/Spectral chaos bounds from scaling theory of maximally efficient quantum-dynamical scrambling
https://doi.org/10.22331/q-202...External Quantum 9, 1651 (2025).
/papers/q-2025-02-26-1651/A key conjecture about the evolution of complex quantum systems towards an ergodic steady state, known as scrambling, is that this process acquires universal...
/page/2/Older posts
/newsletter-signup/Sign up for our monthly digest of papers and other news.
IMG-ALT quantumlog as at
/about/people/Coordinating editors
/about/people/Editors
/about/people/Executive Board Christian Gogolin Marcus Huber Lídia del Rio
/about/people/Steering Board
https://agnostiq.ai/External IMG-ALT Agnostiq
https://unitary.fund/External IMG-ALT Unitary Fund
http://stanhillfoundation.org/External IMG-ALT Stanhill foundation
http://www.iqoqi-vienna.at/External Subdomain IMG-ALT IQOQI Vienna
http://www.quantumlah.org/External Subdomain IMG-ALT CQT
http://blogs.exeter.ac.uk/qut/External Subdomain IMG-ALT COST network Thermodynamics in the Quantum Regime
https://www.xanadu.ai/External Subdomain IMG-ALT Xanadu logo
https://www.facebook.com/share...New window Nofollow External Subdomain A-TITLE Share on Facebook
https://twitter.com/share?url=...New window Nofollow External A-TITLE Share on X
https://www.linkedin.com/shari...New window Nofollow External Subdomain A-TITLE Share on LinkedIn
https://www.reddit.com/submit?...New window Nofollow External Subdomain A-TITLE Share on Reddit
https://quantum-journal.org/feed/New window A-TITLE RSS feed
https://www.crossref.org/membe...External Subdomain IMG-ALT Member of Crossref
https://doaj.org/toc/2521-327XExternal IMG-ALT Listed in the Directory of Open Access Journals DOAJ
http://www.eps.org/?page=publi...External Subdomain IMG-ALT Recognized by the European Physical Society
https://mjl.clarivate.com/sear...External Subdomain IMG-ALT Listed in the Clarivate Analytics Web of Science Core Collection Science Citation Index Expanded
https://www.clockss.org/External Subdomain IMG-ALT Preserved in Clockss
https://www.scopus.com/sourcei...External Subdomain IMG-ALT Indexed in Scopus
https://www.reddit.com/r/quant...New window External Subdomain /r/quantumjournal
http://quantum-journal.org/about/Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
/terms-and-conditions/Some rights reserved.
/terms-and-conditions/Terms and conditions
/impressum/Impressum
/terms-and-conditions/Data protection and privacy policy
https://doi.org/10.22331/qExternal URL anchor text
https://doi.org/10.22331/q
http://www.issn.org/External Subdomain ISSN 2521-327X
https://docs.google.com/spread...New window External Subdomain open accounting
https://www.famethemes.com/the...External Subdomain OnePress

Server configuration

HTTP redirects
(Critically important)
The checked page does not redirect to another URL.
HTTP header
(Important)
The X-powered header is sent within the response header. (unnecessary)
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is very slow (4.30 seconds). The response time should be less than 0.4 seconds. Slow websites are bad for search engine bots and also result in bad user experience.
This page loads 12 CSS files. This may affect the page load time negatively.
This page loads 11 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (81 kB).

HTTP Response Header

NameValue
servernginx
dateThu, 20 Mar 2025 18:15:12 GMT
content-typetext/html; charset=UTF-8
transfer-encodingchunked
connectionkeep-alive
x-powered-byPHP/7.4.33
link<https://quantum-journal.org/wp-json/>; rel="https://api.w.org/"
content-encodinggzip
statuscode200
http_versionHTTP/1.1

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 57 referring domains.
This page has 125 backlinks.
This page has backlinks from 43 different ip addresses.

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Robots.txt

User-agent: *
Disallow: /wp-admin/
Allow: /wp-admin/admin-ajax.php

Sitemap: https://quantum-journal.org/wp-sitemap.xml

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Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
quantum63%Check
journal61%Check
quantum science55%Check
open journal55%Check
Publication54%Check
charges54%Check
update54%Check
Quantum Systems51%Check
quantum optimization51%Check
Quantum key51%Check
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