Expasy.org - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
80% 
Page structure
58% 
Link structure
100% 
Server
91% 
External factors
100% 
SEO Score
Response time
0.32 s
File size
421.10 kB
Words
2138
Media files
3
Number of links
173 internal / 5 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Expasy - SIB Swiss Institute of Bioinformatics
The length of the page title is perfect. (405 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Since 1993 Expasy has been the reference of Bioinformatics Resources. Learn everything about Expasy
The length of the meta description is perfect. (640 pixels out of 1000 max pixel length)
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
Server location: Switzerland
The following language is defined by HTML: en
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
google-site-verificationwW27Qr93sFIEvPN3uocwfHWDLqMkl1yRN1dtmrJNjyY
descriptionSince 1993 Expasy has been the reference of Bioinformatics Resources. Learn everything about Expasy
langen
charsetutf-8

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Page quality

Content
(Critically important)
The average number of words per sentence of 3.85 words is low.
This page contains 2138 words. That's ok.
12% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
8 paragraphs were found on this page.
The text content is perfect.
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)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 43 tags for this page.
Image SEO
(Somewhat important)
1 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
https://www.expasy.org/img/sib.webpSIB: Swiss Institute of Bioinformatics
...NfDGrcbWmHyhGKsv1vhwQGB1R0uPiPAQu8KR.pngNo alt attribute provided
/img/expasy-homepage.webpExpasy: Swiss Bioinformatics Resource Portal

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.
There are 164 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H2 Filters
H2 SIB Resources
H2 Other Resources of SIB Groups
H3 Bgee
H3 STRING
H3 SwissLipids
H3 Cellosaurus
H3 V-pipe
H3 Nextstrain
H3 mOTUs
H3 UniProtKB/Swiss-Prot
H3 Rhea
H3 SwissOrthology
H3 SwissDrugDesign
H3 SwissRegulon Portal
H3 SWISS-MODEL
H3 ASAP
H3 SPSP | Swiss Pathogen Surveillance Platform
H3 Glyco@Expasy
H3 BEAST2
H3 UniProtKB
H3 Selectome
H3 PROSITE
H3 SWISS-MODEL Repository
H3 SwissDock
H3 ENZYME
H3 HAMAP
H3 ViralZone
H3 neXtProt
H3 OrthoDB
H3 OMA
H3 MetaNetX
H3 VenomZone
H3 Arlequin
H3 UniLectin
H3 UniCarb-DB
H3 EPD
H3 TromER
H3 SwissTargetPrediction
H3 SwissSimilarity
H3 SwissSidechain
H3 TagScan
H3 SwissRegulon
H3 SwissParam
H3 SwissBioIsostere
H3 SwissADME
H3 Swiss Mass Abacus
H3 SugarSketcher
H3 SugarBind
H3 SSA
H3 SNP2TFBS
H3 SIBsim4
H3 ShoRAH
H3 REALPHY
H3 QuasR
H3 QMEAN
H3 Progenetix
H3 pftools
H3 PaxDb
H3 PACMAN
H3 OpenStructure
H3 arrayMAP
H3 MSight
H3 miRmap
H3 MADAP
H3 IScan
H3 iPtgxDBs
H3 MELANIE
H3 Glynsight
H3 Glydin'
H3 GlycoSiteAlign
H3 GlyConnect
H3 GlycoDigest
H3 Genome History
H3 FetchGWI / tagger
H3 fastsimcoal
H3 FastEpistasis
H3 ESTscan
H3 BUSCO
H3 Translate
H3 Sulfinator
H3 SIM
H3 RandSeq
H3 ProtScale
H3 ABCD
H3 ProtParam
H3 PRATT
H3 PeptideMass
H3 PeptideCutter
H3 Myristoylator
H3 MALDIPepQuant
H3 HAMAP-Scan
H3 GlycoMod
H3 FindPept
H3 FindMod
H3 Decrease redundancy
H3 Compute pI/MW
H3 UniProt ClustalO
H3 UniProt BLAST
H3 ChIP-Seq
H3 Click2Drug
H3 CRUNCH
H3 Dotlet
H3 CLASTR
H3 SWISS-MODEL Workspace
H3 TCS
H3 CT-CBN
H3 ISA
H3 ExpressionView
H3 ISMARA
H3 Phylogibbs
H3 pROC
H3 ScanProsite
H3 Computational Linguistics for COVID-19
H3 V-pipe SARS-CoV-2
H3 COVTriage
H3 TASmania
H3 TASer
H3 OMA SPARQL endpoint
H3 Bgee SPARQL endpoint
H3 OrthoDB SPARQL endpoint
H3 LEMMI
H3 HAMAP SPARQL endpoint
H3 UniProt SPARQL endpoint
H3 OrthoLoger
H3 rawrr
H3 PolyAsite
H3 Rhea SPARQL endpoint
H3 SIBiLS
H3 raxmlGUI
H3 GlyConnect Compozitor
H3 HMO-Glycologue
H3 Variomes
H3 mVIRs
H3 OMAMO
H3 Phylo.io
H3 Swiss-Trees
H3 Nextclade
H3 SwissLipids SPARQL endpoint
H3 MetaNetX SPARQL endpoint
H3 GlyConnect SPARQL endpoint
H3 SwissBioPics
H3 MHC Motif Atlas
H3 ModelArchive
H3 CAMEO
H3 CAPTAIN
H3 Glittr
H3 cancercelllines.org
H3 CREMA
H3 DWT-online
H3 Cellosaurus SPARQL endpoint
H3 GenSpectrum
H3 Protein Universe Atlas
H3 OMArk
H3 SIBiLS SPARQL endpoint
H3 BiotXplorer
H3 Biodiversity PMC
H3 EnzChemRED
H3 GlycoQL
H3 Pathoplexus
H3 Cellstates
H3 Sanity
H3 MatrixDB
H3 prolfqua
The number of internal links is ok.
Every linktext is unique.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 5 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.expasy.org/Subdomain IMG-ALT SIB: Swiss Institute of Bioinformatics
https://www.expasy.org/Subdomain Home
https://www.expasy.org/aboutSubdomain About
https://www.expasy.org/helpSubdomain Help
https://www.expasy.org/chatSubdomain ExpasyGPT
https://www.sib.swiss/about/newsNew window External Subdomain SIB News
https://www.expasy.org/contactSubdomain Contact
https://www.sib.swiss/training...New window External Subdomain UniProt: Focus on Plant Proteins
A-TITLE UniProt: Focus on Plant Proteins ¦ SIB Swiss Institute of Bioinformatics
https://www.uniprot.org/New window External Subdomain No Text
/search/blastSubdomain BLAST
/search/uniprotSubdomain UniProt
/search/msh6Subdomain MSH6
/search/albuminSubdomain Albumin
https://www.sib.swiss/database...New window External Subdomain URL anchor text
https://www.sib.swiss/database-software-tools/sib-resources
/resources/bgeeBgee
/resources/stringSTRING
/resources/swisslipidsSwissLipids
/resources/cellosaurusCellosaurus
/resources/v-pipeV-pipe
/resources/nextstrainNextstrain
/resources/motusmOTUs
/resources/uniprotkb-swiss-protUniProtKB/Swiss-Prot
/resources/rheaRhea
/resources/swissorthologySwissOrthology
/resources/swissdrugdesignSwissDrugDesign
/resources/swissregulon-portalSwissRegulon Portal
/resources/swiss-modelSWISS-MODEL
/resources/asapASAP
/resources/spspSPSP | Swiss Pathogen Surveillance Platform
/resources/glyco-expasyGlyco@Expasy
/resources/beastBEAST2
/resources/uniprotkbUniProtKB
/resources/selectomeSelectome
/resources/prositePROSITE
/resources/swiss-model-repositorySWISS-MODEL Repository
/resources/swissdockSwissDock
/resources/enzymeENZYME
/resources/hamapHAMAP
/resources/viralzoneViralZone
/resources/nextprotneXtProt
/resources/orthodbOrthoDB
/resources/omaOMA
/resources/metanetxMetaNetX
/resources/venom-zoneVenomZone
/resources/arlequinArlequin
/resources/unilectinUniLectin
/resources/unicarb-dbUniCarb-DB
/resources/epdEPD
/resources/tromerTromER
/resources/swisstargetpredictionSwissTargetPrediction
/resources/swisssimilaritySwissSimilarity
/resources/swisssidechainSwissSidechain
/resources/tagscanTagScan
/resources/swissregulonSwissRegulon
/resources/swissparamSwissParam
/resources/swissbioisostereSwissBioIsostere
/resources/swissadmeSwissADME
/resources/swiss-mass-abacusSwiss Mass Abacus
/resources/sugarsketcherSugarSketcher
/resources/sugarbindSugarBind
/resources/ssaSSA
/resources/snp2tfbsSNP2TFBS
/resources/sibsim4SIBsim4
/resources/shorahShoRAH
/resources/realphyREALPHY
/resources/quasrQuasR
/resources/qmeanQMEAN
/resources/progenetixProgenetix
/resources/pftoolspftools
/resources/paxdbPaxDb
/resources/pacmanPACMAN
/resources/openstructureOpenStructure
/resources/arraymaparrayMAP
/resources/msightMSight
/resources/mirmapmiRmap
/resources/madapMADAP
/resources/iscanIScan
/resources/iptgxdbsiPtgxDBs
/resources/melanieMELANIE
/resources/glynsightGlynsight
/resources/glydinGlydin'
/resources/glycositealignGlycoSiteAlign
/resources/glyconnectGlyConnect
/resources/glycodigestGlycoDigest
/resources/genome-historyGenome History
/resources/fetchgwi-taggerFetchGWI / tagger
/resources/fastsimcoalfastsimcoal
/resources/fastepistasisFastEpistasis
/resources/estscanESTscan
/resources/buscoBUSCO
/resources/translateTranslate
/resources/sulfinatorSulfinator
/resources/simSIM
/resources/randseqRandSeq
/resources/protscaleProtScale
/resources/abcdABCD
/resources/protparamProtParam
/resources/prattPRATT
/resources/peptidemassPeptideMass
/resources/peptidecutterPeptideCutter
/resources/myristoylatorMyristoylator
/resources/maldipepquantMALDIPepQuant
/resources/hamap-scanHAMAP-Scan
/resources/glycomodGlycoMod
/resources/findpeptFindPept
/resources/findmodFindMod
/resources/decrease-redundancyDecrease redundancy
/resources/compute-pi-mwCompute pI/MW
/resources/uniprot-clustaloUniProt ClustalO
/resources/uniprot-blastUniProt BLAST
/resources/chip-seqChIP-Seq
/resources/click2drugClick2Drug
/resources/crunchCRUNCH
/resources/dotletDotlet
/resources/str-similarity-sear...CLASTR
/resources/swiss-model-workspaceSWISS-MODEL Workspace
/resources/tcsTCS
/resources/ct-cbnCT-CBN
/resources/isaISA
/resources/expressionviewExpressionView
/resources/ismaraISMARA
/resources/phylogibbsPhylogibbs
/resources/procpROC
/resources/scanprositeScanProsite
/resources/computational-lingu...Computational Linguistics for COVID-19
/resources/v-pipe-sars-cov-2V-pipe SARS-CoV-2
/resources/covidtriageCOVTriage
/resources/tasmaniaTASmania
/resources/taserTASer
/resources/oma-sparql-endpointOMA SPARQL endpoint
/resources/bgee-sparql-endpointBgee SPARQL endpoint
/resources/orthodb-sparql-endp...OrthoDB SPARQL endpoint
/resources/lemmiLEMMI
/resources/hamap-sparql-endpointHAMAP SPARQL endpoint
/resources/uniprot-sparql-endp...UniProt SPARQL endpoint
/resources/orthologerOrthoLoger
/resources/rawrrrawrr
/resources/polyasitePolyAsite
/resources/sparql-rhea-db-orgRhea SPARQL endpoint
/resources/sibilsSIBiLS
/resources/raxmlguiraxmlGUI
/resources/glyconnect-compozitorGlyConnect Compozitor
/resources/hmo-glycologueHMO-Glycologue
/resources/variomesVariomes
/resources/mvirsmVIRs
/resources/omamoOMAMO
/resources/phylo-ioPhylo.io
/resources/swiss-treesSwiss-Trees
/resources/nextcladeNextclade
/resources/swisslipids-sparql-...SwissLipids SPARQL endpoint
/resources/metanetx-sparql-end...MetaNetX SPARQL endpoint
/resources/glyconnect-sparql-e...GlyConnect SPARQL endpoint
/resources/swissbiopicsSwissBioPics
/resources/mhc-motif-atlasMHC Motif Atlas
/resources/modelarchiveModelArchive
/resources/cameoCAMEO
/resources/captainCAPTAIN
/resources/glittrGlittr
/resources/cancercelllines-orgcancercelllines.org
/resources/cremaCREMA
/resources/dwt-onlineDWT-online
/resources/cellosaurus-sparql-...Cellosaurus SPARQL endpoint
/resources/genspectrumGenSpectrum
/resources/protein-universe-atlasProtein Universe Atlas
/resources/omarkOMArk
/resources/sibils-sparql-endpointSIBiLS SPARQL endpoint
/resources/biotxplorerBiotXplorer
/resources/biodiversity-pmcBiodiversity PMC
/resources/enzchemredEnzChemRED
/resources/glycoqlGlycoQL
/resources/pathoplexusPathoplexus
/resources/cellstatesCellstates
/resources/sanitySanity
/resources/matrixdbMatrixDB
/resources/prolfquaprolfqua
https://sib.swiss/External SIB Swiss Institute of Bioinformatics
/terms-of-useSubdomain Terms of Use
https://www.expasy.org/Anchor Back to the top

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.expasy.org/"
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 excellent with 0.32 seconds.
The file size of the HTML document is fine (421 kB).

HTTP Response Header

NameValue
dateSat, 10 May 2025 02:26:59 GMT
servernginx
strict-transport-securitymax-age=31536000; includeSubDomains
content-typetext/html; charset=UTF-8
varyAccept-Encoding
x-powered-byPHP/8.3.21
cache-controlprivate, must-revalidate
pragmano-cache
expires-1
sourceexpasy-prod8
x-frame-optionsSAMEORIGIN
x-xss-protection1; mode=block
x-content-type-optionsnosniff
content-security-policydefault-src 'self'; font-src 'self' fonts.bunny.net data:; img-src 'self' matomo.sib.swiss fonts.googleapis.com fonts.gstatic.com data: blob: ui-avatars.com; script-src 'self' 'unsafe-inline' 'unsafe-eval' matomo.sib.swiss https://unpkg.com; style-src 'self' fonts.bunny.net 'unsafe-inline' https://unpkg.com; connect-src 'self' matomo.sib.swiss https://chat.expasy.org;
referrer-policystrict-origin
permissions-policyaccelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=()
content-encodinggzip
set-cookie428 Characters
statuscode200
http_versionHTTP/2

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 3,559 referring domains.
This page has 668,108 backlinks.
This page has backlinks from 2,281 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

Sitemap: https://www.expasy.org/sitemap.xml
User-agent: *
Disallow: /admin
Disallow: /admin2

Similar sites

Search preview

www.expasy.org
Expasy - SIB Swiss Institute of Bioinformatics
Since 1993 Expasy has been the reference of Bioinformatics Resources. Learn everything about Expasy

Most important keywords

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

KeywordResultRecheck
Expasy77%Check
SIB58%Check
bioinformatics58%Check
resource56%Check
SIB Swiss Institute56%Check
SIB Resources56%Check
resources54%Check
Bioinformatics Resource Portal52%Check
SIB Groups50%Check
Swiss Pathogen49%Check
Show more keywords and terms

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