Journal profile · Multiple
Diplomatica
ISSN 2589-1766 · eISSN 2589-1774 · Brill
Diplomatica: CAS Zone 4 · Sociology (2025 upgraded edition); hybrid open access; 31 articles in 2025; indexed in ESCI and Scopus.
Scope
Aims, scope and focus
Diplomatica is published by Brill and is in Zone 4 of Sociology in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Historical Influence and Diplomacy, International Relations and Foreign Policy and History and International Relations, together about 65.9% of its articles. Its main subfields are Political Science and International Relations and History. (generated from OpenAlex topic counts and CAS ranking data)
Research area (LetPub): Multiple
Main research topics OpenAlex counts of recent articles; shares are approximate
- Historical Influence and DiplomacySocial Sciences24.1%
- International Relations and Foreign PolicySocial Sciences20.9%
- History and International RelationsSocial Sciences20.9%
- Historical Geopolitical and Social DynamicsSocial Sciences4.8%
- History, Culture, and DiplomacyArts and Humanities2.6%
- Historical and Contemporary Political DynamicsArts and Humanities2.6%
- European Cultural and National IdentitySocial Sciences2.2%
- World Wars: History, Literature, and ImpactSocial Sciences2%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Sociology Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Sociology | Zone 4 |
| Minor | History | Zone 4 |
| Minor | International Relations | Zone 4 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Sociology Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Sociology | Zone 3 |
| Minor | History | Zone 3 |
| Minor | International Relations | Zone 4 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Not covered
Not covered by this edition.
CiteScore quartiles (Scopus, June 2026 release)
| Subject | Quartile | Rank | Percentile |
|---|---|---|---|
| History | Q1 | 224/1936 | — |
| Political Science and International Relations | Q3 | 395/745 | — |
| Social Sciences (miscellaneous) | Q3 | 398/744 | — |
Scopus ranks journals by CiteScore within each subject: the 75th percentile and above is Q1, then a quartile every 25 points. A different system from the CAS zones.LetPub
Database indexing
ESCIScopusLetPub
International journal early-warning lists: not listed in any editionLetPub
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- CiteScore 2026-06
- 1.3LetPub ·
- SJR 2026-06
- 0.31LetPub ·
- SNIP 2026-06
- 2.75LetPub ·
- h-index
- 9OpenAlex ·
- i10-index
- 7OpenAlex ·
- 2-year mean citedness
- 0.19OpenAlex ·
- Self-citation rate
- 8.3%LetPub ·
- Share of gold OA articles
- 27.08%LetPub ·
Volume
- Articles per year
- 20LetPub ·
Articles by year OpenAlex count · 238 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 22 | 3 | 47 |
| 2025 | 31 | 4 | 67 |
| 2024 | 26 | 10 | 79 |
| 2023 | 25 | 20 | 45 |
| 2022 | 29 | 5 | 43 |
| 2021 | 33 | 8 | 31 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Fees & open access
APC and open-access policy
Hybrid open accessLetPub
A subscription journal in which authors can pay to publish their article open access.
No source has fee information yet; check the journal's website.
A hybrid journal charges the APC only when the author chooses open access; publishing under the subscription model is usually free.
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Profile
Publication details and official links
- Publisher
- Brill
- ISSN
- 2589-1766
- Electronic ISSN
- 2589-1774
FAQ
Frequently asked questions about Diplomatica
What CAS zone is Diplomatica in?
In the 2025 upgraded edition of the CAS Journal Ranking, Diplomatica is in Zone 4 of Sociology, and in Zone 4 of the minor category History / International Relations. In the 2026 Xinrui edition it is in Zone 3 of Sociology. Zones from different editions, and from major and minor categories, are not interchangeable.
Which databases index Diplomatica?
According to LetPub and DOAJ records, Diplomatica is indexed in ESCI and Scopus.
Is Diplomatica open access, and what is the APC?
Diplomatica is a hybrid journal. Fee information is not available yet; check the journal's website.
Sources and updates
The facts on this page come from LetPub, OpenAlex; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-24). Last updated: .