200 Top SEO Ranking Factors May 2026

TOP SEO Factors for 2026-05 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Unique LSI Words Used Diversity	-0.25	844	314	83 %	82 %
2	Number of Top 200 Shared Factors Used Diversity	-0.22	51	38	98 %	95 %
3	Number of Top 100 Shared Factors Used Diversity	-0.22	38	28	97 %	96 %
4	Number of Distinct Entities Used Diversity	-0.22	55	29	80 %	97 %
5	Entities in Sentences Relevancy	-0.22	1308	153	69 %	96 %
6	Entities in the HTML Tag Relevancy	-0.22	1436	156	74 %	96 %
7	Number of Top 50 Shared Factors Used Diversity	-0.22	16	12	96 %	94 %
8	Number of Unique Variations Used Diversity	-0.21	19	7	77 %	87 %
9	Variations in H1-H6 Tags Relevancy	-0.21	409	17	60 %	90 %
10	Variations in H1, H2, and H3 Tags Relevancy	-0.21	378	15	60 %	91 %
11	Variations in H1 and H2 Tags Relevancy	-0.21	287	8	58 %	91 %
12	Search Result Domain is .com, .net, or .org Other	-0.21	1	1	6 %	78 %
13	Variations in Div Tags Relevancy	-0.21	68329	1558	70 %	89 %
14	Entities in H2 Tags	-0.21	46	7	51 %	96 %
15	Variations in Search Result Document File Name Relevancy	-0.2	8	2	44 %	81 %
16	Load Time Milliseconds Performance	-0.2	3860	1215	82 %	90 %
17	Variations in P Tags Relevancy	-0.2	4557	160	61 %	94 %
18	Entities in Title Tag Relevancy	-0.2	7	3	65 %	92 %
19	Search Result Domain is .com Other	-0.2	1	1	6 %	78 %
20	Entities in H3 Tags	-0.2	40	8	43 %	95 %
21	Entities in H1 Tags	-0.2	4	2	50 %	86 %
22	Number of Backlinks Authority	-0.19	380292	14658	52 %	75 %
23	Variations in LI Tags Relevancy	-0.19	2914	111	59 %	88 %
24	Number of Factors Used Diversity	-0.19	271	173	98 %	91 %
25	Variations in Search Result URL Path Relevancy	-0.19	10	2	46 %	83 %
26	Unabridged Word Count Size	-0.19	9873	1913	83 %	92 %
27	Word Count Size	-0.19	3327	1445	83 %	92 %
28	Number of Referring Domains Authority	-0.19	3169	225	52 %	77 %
29	Variations in H2 Tags Relevancy	-0.19	280	7	44 %	89 %
30	Variations in Body Tags Relevancy	-0.19	93621	1510	74 %	88 %
31	Variations in H1 Tags Relevancy	-0.19	20	2	50 %	86 %
32	Clean Text Kilobytes Size	-0.19	54	13	70 %	91 %
33	LSI Words in Sentences Relevancy	-0.19	2378	775	62 %	96 %
34	Has Entities in H1 Tags Relevancy	-0.19	1	1	53 %	87 %
35	Number of Heading Tags Size	-0.18	45	22	70 %	90 %
36	Number of P Tags Size	-0.18	114	39	69 %	91 %
37	Variations in A Tags Relevancy	-0.18	9305	200	61 %	87 %
38	Number of Do Follow Backlinks Authority	-0.18	325053	12105	48 %	75 %
39	Variations in A Tag HREF Attributes Relevancy	-0.18	2876	105	55 %	85 %
40	Variations in HTML Tags Relevancy	-0.18	93621	1488	73 %	89 %
41	Variations in Main Tags Relevancy	-0.18	40166	820	38 %	89 %
42	Number of Images Size	-0.18	309	33	69 %	91 %
43	Variations in Distinct A Tag HREF Attributes Relevancy	-0.18	1808	67	55 %	87 %
44	Variations in Sentences Relevancy	-0.18	8372	221	68 %	91 %
45	Number of HTML Tags Size	-0.18	2805	1073	83 %	89 %
46	Term Frequency Relevancy	-0.18	6	3	73 %	90 %
47	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	32	2	41 %	84 %
48	Number of Internal Links Authority	-0.18	619	128	75 %	88 %
49	Number of Images with ALT Text Size	-0.18	304	23	64 %	88 %
50	Has Entities in H2 Tags Relevancy	-0.18	1	1	53 %	88 %
51	Number of Links Authority	-0.18	624	142	76 %	90 %
52	Number of HTTPS Links Authority	-0.18	623	141	76 %	90 %
53	Variations in the Canonical URL Relevancy	-0.18	50	3	47 %	82 %
54	Variations in the Title Tag Relevancy	-0.18	23	2	62 %	81 %
55	Number of DoFollow Links Authority	-0.18	614	138	76 %	90 %
56	Leading Variations in H1-H6 Tags Relevancy	-0.17	36	3	42 %	84 %
57	Number of No Follow Backlinks Authority	-0.17	61104	2723	38 %	72 %
58	Number of H2 Tags Size	-0.17	23	7	63 %	91 %
59	Variations in H3 Tags Relevancy	-0.17	123	6	35 %	84 %
60	Variations in Span Tags Relevancy	-0.17	1077	34	47 %	88 %
61	Number of H1 Tags Size	-0.17	3	1	66 %	91 %
62	Number of H3 Tags Size	-0.17	26	9	55 %	86 %
63	Variations in Search Result URL Relevancy	-0.17	21	2	56 %	77 %
64	Search Result Number of Dirs in Path Other	-0.17	3	2	72 %	79 %
65	Variation Count in Top 30KB Relevancy	-0.17	4928	113	62 %	91 %
66	Number of External Links Authority	-0.17	32	15	72 %	87 %
67	Has Entities in H3 Tags Relevancy	-0.17	1	1	44 %	91 %
68	Variations in First 100 Words Relevancy	-0.17	177	11	61 %	81 %
69	LSI Words in H2 Tags Relevancy	-0.17	91	21	52 %	96 %
70	Clean Keyword Density in the HTML Tag Relevancy	-0.17	203	14	67 %	74 %
71	Number of DoFollow External Links Authority	-0.17	30	13	71 %	87 %
72	Average Words Per Sentence Size	-0.16	172	30	74 %	84 %
73	Variations in Search Result Display URL Relevancy	-0.16	19	2	77 %	78 %
74	Variations in Search Result Link Text Relevancy	-0.16	19	2	77 %	78 %
75	Variations in Absolute URLs Relevancy	-0.16	14393	395	58 %	88 %
76	Entities in Meta Description Tag Relevancy	-0.16	19	3	57 %	87 %
77	TF/IDF Relevancy	-0.16	2	1	58 %	88 %
78	Title Tag Has Entities Relevancy	-0.16	1	1	66 %	82 %
79	Variation Density in Top 30KB Relevancy	-0.16	310	18	60 %	79 %
80	Variations in ALT Attributes Relevancy	-0.16	588	13	41 %	87 %
81	Is Home Page Other	-0.16	1	1	21 %	35 %
82	Variations in OpenGraph Title Relevancy	-0.16	16	2	54 %	83 %
83	Number of Images without ALT Text Size	-0.16	32	10	53 %	89 %
84	Flesch Kincaid Reading Grade Level Other	-0.16	5	1	93 %	88 %
85	Variations in Section Tags Relevancy	-0.16	1250	52	35 %	92 %
86	Title Word Count Size	-0.16	28	8	80 %	73 %
87	Leading Variations in H1 Tags Relevancy	-0.16	2	1	27 %	78 %
88	Number of HTML Comments Size	-0.16	179	45	65 %	87 %
89	LSI Words in H1 Tags Relevancy	-0.16	10	4	52 %	93 %
90	Number of Sentences Size	-0.16	332	143	79 %	87 %
91	Number of Facebook Pages Authority	-0.15	4	2	53 %	79 %
92	Variations in OpenGraph Description Relevancy	-0.15	45	3	48 %	76 %
93	Title Length Size	-0.15	100	51	79 %	73 %
94	Variations in Meta Description Relevancy	-0.15	49	3	52 %	79 %
95	LSI Words in Title Tag Relevancy	-0.15	13	6	65 %	91 %
96	Variations in Nav Tags Relevancy	-0.15	7034	248	44 %	85 %
97	LSI Words in H3 Tags Relevancy	-0.15	97	23	45 %	91 %
98	Has US Phone Number Trust	-0.15	1	1	36 %	67 %
99	Number Of JSON-LD Types Relevancy	-0.15	55	13	52 %	89 %
100	Search Result Domain Length Size	-0.15	22	16	82 %	80 %
101	Search Result Host Length Size	-0.15	22	16	82 %	80 %
102	Percentage of DoFollow Links Authority	-0.15	96	79	76 %	91 %
103	Number of Questions In Headings Size	-0.15	6	2	33 %	87 %
104	Percentage of DoFollow Internal Links Authority	-0.15	89	68	74 %	84 %
105	Has Meta Charset Technology	-0.15	1	1	71 %	85 %
106	Exact Matches in the HTML Tag Relevancy	-0.15	242	13	33 %	87 %
107	Has Privacy Policy Trust	-0.14	1	1	59 %	75 %
108	Search Result Uses HTTPS Other	-0.14	1	1	82 %	85 %
109	Exact Matches in Sentences Relevancy	-0.14	37	4	24 %	86 %
110	LSI Words in Meta Description Tag Relevancy	-0.14	23	10	54 %	88 %
111	Number of US Phone Numbers Trust	-0.14	249	12	35 %	83 %
112	Variations in Script Tags Relevancy	-0.14	52712	1006	62 %	83 %
113	Leading Variations in Title Tag Relevancy	-0.14	1	1	30 %	83 %
114	Entities in H4 Tags	-0.14	21	2	19 %	89 %
115	Variations in Strong Tags Relevancy	-0.14	289	8	24 %	79 %
116	Number of Includes Technology	-0.14	68	26	77 %	74 %
117	Number of Forms Technology	-0.14	10	2	48 %	83 %
118	Inline CSS Kilobytes Size	-0.14	189	59	63 %	84 %
119	Percentage of DoFollow External Links Authority	-0.14	22	12	70 %	79 %
120	Leading Variations in H2 Tags Relevancy	-0.14	22	1	22 %	83 %
121	Has JSON-LD Schema Markup Relevancy	-0.14	1	1	50 %	85 %
122	Number of Social Accounts Authority	-0.14	8	2	38 %	87 %
123	Exact Matches in H1-H6 Tags Relevancy	-0.14	8	1	21 %	82 %
124	Variations Making Whole Span Tags Relevancy	-0.14	4	1	18 %	81 %
125	Has Canonical URL Authority	-0.14	1	1	69 %	80 %
126	Number of JavaScript Includes Technology	-0.14	46	18	76 %	76 %
127	Variations in Footer Tags Relevancy	-0.14	6817	116	33 %	83 %
128	Has Terms of Service Trust	-0.14	1	1	42 %	70 %
129	Has Meta Viewport Technology	-0.14	1	1	79 %	79 %
130	Word Count in Meta Description Size	-0.14	47	19	65 %	81 %
131	Headings Has Question Other	-0.14	1	1	34 %	82 %
132	Number of H4 Tags Size	-0.14	23	4	33 %	81 %
133	Number of Questions In H2 Tags Size	-0.14	3	1	22 %	80 %
134	Uses JSON-LD name Other	-0.14	1	1	50 %	85 %
135	Has Form Technology	-0.14	1	1	46 %	79 %
136	Number of Absolute URLs Authority	-0.14	617	281	82 %	82 %
137	Meta Description Length Size	-0.14	178	116	65 %	77 %
138	Page Size Kilobytes Size	-0.14	748	352	81 %	72 %
139	Has OpenGraph Image Relevancy	-0.14	1	1	54 %	72 %
140	Uses JSON-LD description Other	-0.14	1	1	38 %	76 %
141	Variations making whole H1-H6 Tags Relevancy	-0.13	3	1	14 %	76 %
142	Meta Description Tag Has Entities Relevancy	-0.13	1	1	59 %	80 %
143	Variations making whole A Tags Relevancy	-0.13	115	4	27 %	77 %
144	Variations in ID Attributes Relevancy	-0.13	1696	40	19 %	82 %
145	Number of CSS Includes Technology	-0.13	22	9	71 %	71 %
146	Leading Variations in H3 Tags Relevancy	-0.13	9	1	16 %	75 %
147	Number of Instagram Pages Authority	-0.13	23	2	40 %	76 %
148	Number of Prices Size	-0.13	453	101	65 %	78 %
149	Number of Questions In H3 Tags Size	-0.13	4	1	17 %	79 %
150	Number of Social Pages Authority	-0.13	25	4	59 %	82 %
151	Number of LinkedIn Pages Authority	-0.13	8	1	29 %	79 %
152	Variations in Article Tags Relevancy	-0.13	3771	77	21 %	73 %
153	Number of Questions Size	-0.13	38	12	63 %	85 %
154	Uses JSON-LD ListItem Other	-0.13	1	1	31 %	76 %
155	Variations making whole H1, H2, and H3 Tags Relevancy	-0.13	3	1	13 %	77 %
156	Variations Making Whole LI Tags Relevancy	-0.13	5	1	21 %	81 %
157	Uses Schema pricespecification Other	-0.13	1	1	2 %	11 %
158	Exact Matches in Top 30KB Relevancy	-0.13	14	2	19 %	81 %
159	Has Schema Markup Relevancy	-0.13	1	1	62 %	74 %
160	Number of Nofollow Links Authority	-0.13	15	4	22 %	85 %
161	Uses JSON-LD SeekToAction Other	-0.13	1	1	1 %	11 %
162	Uses Schema seektoaction Other	-0.13	1	1	1 %	11 %
163	Uses JSON-LD BreadcrumbList Other	-0.13	1	1	31 %	77 %
164	Number of Facebook Accounts Authority	-0.13	2	1	26 %	74 %
165	Variations in I Tags Relevancy	-0.13	568	14	19 %	76 %
166	Uses Schema brand Other	-0.13	1	1	7 %	40 %
167	Uses Schema name Other	-0.13	1	1	57 %	78 %
168	Variations in B Tags Relevancy	-0.13	204	8	11 %	79 %
169	Is Article Page Other	-0.13	1	1	40 %	71 %
170	Number Of Claimed Brands Other	-0.13	43	2	24 %	86 %
171	Variations in Button Tags Relevancy	-0.13	5433	110	14 %	87 %
172	Uses JSON-LD url Other	-0.13	1	1	45 %	82 %
173	Uses Schema sku Other	-0.13	1	1	7 %	23 %
174	Number of Twitter Accounts Authority	-0.12	5	1	20 %	82 %
175	Variations in TITLE Attributes Relevancy	-0.12	1571	22	34 %	82 %
176	Uses Schema latitude Other	-0.12	1	1	8 %	34 %
177	Uses Schema longitude Other	-0.12	1	1	8 %	34 %
178	Variations in the last 100 words Relevancy	-0.12	176	9	44 %	72 %
179	Has Entities in H4 Tags Relevancy	-0.12	1	1	20 %	76 %
180	Uses Schema product Other	-0.12	1	1	11 %	50 %
181	Uses JSON-LD latitude Other	-0.12	1	1	8 %	35 %
182	Uses JSON-LD longitude Other	-0.12	1	1	8 %	35 %
183	Has Contact Page Trust	-0.12	1	1	59 %	72 %
184	Uses JSON-LD Organization Other	-0.12	1	1	30 %	79 %
185	Has Meta Description Relevancy	-0.12	1	1	63 %	77 %
186	Uses Schema organization Other	-0.12	1	1	33 %	79 %
187	Search Result Summary Length Size	-0.12	160	152	98 %	59 %
188	Uses JSON-LD unitCode Other	-0.12	1	1	3 %	11 %
189	Has FavIcon Technology	-0.12	1	1	74 %	77 %
190	Has OpenGraph Type Relevancy	-0.12	1	1	59 %	79 %
191	Uses Schema aggregaterating Other	-0.12	1	1	8 %	64 %
192	Number of H5 Tags Size	-0.12	6	2	16 %	79 %
193	Has Apple Touch Icon Technology	-0.12	1	1	47 %	78 %
194	Search Result URL Length Size	-0.12	93	61	96 %	61 %
195	Exact Matches in Title Tag Relevancy	-0.12	1	1	17 %	80 %
196	Uses Schema url Other	-0.12	1	1	52 %	73 %
197	Uses Schema paymentaccepted Other	-0.12	1	1	4 %	18 %
198	Variations making whole H1 Tags Relevancy	-0.12	1	1	8 %	77 %
199	Uses JSON-LD GeoCoordinates Other	-0.12	1	1	13 %	42 %
200	Is OpenGraph Type Article Technology	-0.12	1	1	29 %	64 %

Measures 150529 SEO Factors

148807 Built-In SEO Factors

139605 On-page SEO Factors

9202 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2026-05 previous